Bullman Clamp type C (C-50 · C-60)

Certified type I temporary industrial joints

They are mainly used to connect parts where two steel sheets overlap each other

Specification

Bullman Clamp type C

In C type, besides the basic type, Bullman also has smaller, larger and special clamps C type. It is possible to choose according to the size and application of steel materials.

Specification

Model	Clamp range	A	B	C	D	E	F	thickness	Own weight	Bolt size	Ratchet	Use load
Cs-28	13-26	74	76	28	39	28	18	24	0.6kg	M12x35	19	9.8kN
Cs-40	15-38	77	100	40	42	31	21	24	0.7kg	M12x40	19	9.8kN
C-50	12-48	126	144	50	56	37	35	38	3.1kg	M24x65	41	78.4kN
C-60	21-60	127	156	62	57	37	35	40	3.3kg	M24x65	41	78.4kN
C-70	30-70	192	208	72	100	80	35	40	6.5kg	M24x65	41	78.4kN
C-90	52-88	190	230	90	90	70	35	40	7.0kg	M24x65	41	78.4kN
c-110 I	85-113	228	270	116	100	80	35	40	10.6kg	M24x65	41	78.4kN

Specification

Model	Clamp range	A	B	C	D	E	thickness	Own weight	Bolt size	Ratchet	Working load
C-110Ⅱ	85-113	185	290	115	100	80	40	8.2kg	M24x80	41	78.4kN
C-130	110-135	185	290	136	100	80	40	7.9kg	M24x80	41	78.4kN

Bullman Clamp type G

Type G clamp is used to connect channel and angle struts.

Specification

Model	Clamp range	A	B	C	D	E	F	Own weight	Ratchet	Working load
G	L100x100 [Up to 380 x 100	290	185	150	50	40	85	8.8kg	41	68.6kN

Bullman Clamp type LA

Certified type II temporary industrial joints

Type LA clamp is used to join the supporting pile, web brace and angle brace.

Bullman Clamp type NT

Certified type III temporary industrial joints

Type NT clamp used to attach supporting pile, furthermore it is used for horizontal joining of beam and channel strut.

Specification

Bullman Clamp type SP

Mounting bracket for temporary protective fence.

• It is used to fix the angle
  breath, etc. to the web direction surface of the H-shaped steel strut.

• ■Specifications ※Flange side angle side common

• Pinch width	Bolt head to side	weight
  0～26mm ※	36mm	3.6kg

• ■Allowable strength (kN) / Tightening torque: 300N/m

• short term	long-term
  145	95

• 

G type (sandwich width 50 mm) is the easiest to hold with one hand and is the most
It is a metal fitting that is often used.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

It is a wide type of G type. It is used when the pinch width is not enough in the G type.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

The wide swallowing section can join the L-75X75 to the flange of H-type steel.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

It is a wide type of GIII. L100 × 100/ C200×90 can be used.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

Sharp angle mounting bracket for horizontal breath. If the angle is below 40 degrees, use the XIV type.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

We developed the concept of “light and easy to hold” for bridge top construction work.

■Specifications

■Allowable strength (kN) / Tightening torque: 100N/m

It is used mainly for places where static loads act, such as loading platforms and overbridges.

■Specifications

■Allowable strength (kN) / Tightening torque: 300N/m

Compact and lightweight type.
Can be tightened with a ratchet wrench.

■Specifications

■Allowable strength (kN) / Tightening torque: 100N/m

Both bolt types with a pinch width of 42 mm.
※ Bolt head the other side is 19 and 24 mm.

■Specifications

■Allowable strength (kN) / Tightening torque: 100N/m

◆ Shape & dimensions

Features

● Large force is not required when hoisting because of the use of a chain block.
● Assembly, disassembly and height adjustment can be easily performed with ‘set pins’.

Allowable load 4.90kN (500 kgf)/stand

Lowering device for assembled beam rebars

Features
● The lowering device (lever hoist) rotates horizontally for easy operation in any direction.
● By pulling either side of the chain, the lowering device and steel beam bar can be easily set.
● Assembly, disassembly and height adjustment can be easily performed with ‘set pins’.

Allowable load: 4.90kN (500 kgf)/stand

◆Shape & dimensions

◆Specs

◆Example of use

Cautions
● Please read the instruction manual.
● Use the product within the allowable load.
● When using the product, adjust it with the H pole holes so that the beam materials become horizontal.
● Never suspend the materials in such a way that they receive eccentric load.
● Be sure to avoid excessive hoisting or rewinding as either can cause damage or an accident.
● Be sure to inspect the product before use.
● Never modify the product or its accessories, or use the product for any purpose other than its intended purpose.

Features

●Featuring excellent lubricity enhanced by the addition of a fluorine compound, this product offers unparalleled performance. Quick-drying and non-sticky, it ensures convenience and ease of use in various applications. Moreover, its transparent film preserves the aesthetics of the material without compromise.

◆Application
● Anti-seizing lubricant for stainless bolts and nuts.
● Prevents tightening troubles for various steel screws.

Cautions
● Before using this combustible product, it’s crucial to confirm the precautions specified on the product label, as it contains high-pressure gas. Take heed of the safety instructions outlined to ensure proper handling and usage.

Masking tube for rebar

Features

● Curing of rebars and anchor bolts.
● Prevention of concrete leakage adhesion to rebars.
● When heated, the product shrinks and fits the surface of rebars regardless of the shapes

Rust-proof tube for rebar

The result of an exposure comparison test
《after lapse of 3 years》
1 & 3: W/O Product
2 & 4: With Product

Features

●Application of the product over the rebar is easy, simplifying the construction process. This method significantly reduces the cleaning work required for the rebar, saving time and effort. Moreover, its effects are visually observable, ensuring quality and efficiency in the construction project.

◆Rust Prevention

The rust preventive component mixed in the product evaporates, and dissolves in the water vapor inside the tube which, forms a rust preventive film on the surface of the rebar. (See the figure below.)

◆Comparison with conventional working method

Cautions
●Prior to use, carefully examine the product for any signs of damage such as holes or tears. After completing the installation, conduct another thorough inspection to ensure everything is properly in place. To prevent water exposure, remember to fold down the end of the product securely. Additionally, minimize exposure to direct sunlight and avoid placing it in high-temperature environments.

● Avoid direct sunlight and high term.

peratures for storing.
● Make sure to avoid fire, etc as the product may catch a fire.
● The color of the product may be change, but does not affect the ust preventive effect.

Surface preparation agent for concrete joint

◆Performance

How to use

● Exposes aggregates on the surface by uniform osmotic force, resulting in enhanced adhesion and waterproof performance of the joints.
● Does not deteriorate the concrete strength. Forms economical and highly water-tight joints compared to the conventional green cut method.
● No harmful substances are used as main ingredients.

Cautions

● To wash away Disparlight CR, use a high pressure washer (approximately 30kg/cm2).
● Provide protection with cover plate, etc., before spraying in order to prevent Disparlight CR from flowing in directly between the formwork and concrete.(If Disparlight CR flows in, etching may occur on the
concrete surface after the formwork is removed.)
● Spray Disparlight CR uniformly with sufficient care. (Insufficient or uneven spray causes uneven etching.)
● Disparlight CR is stable until -5°C but store it in such a way as to avoid freezing.

◆Performance

How to use
1. Apply Disparlight DV to formwork before placing concrete
2. Curing of concrete
3. Remove formwork within a certain time
4. Wash concrete surfac

Cautions
● The retardation effects of Disparlight DV are affected by temperature. Therefore, pay sufficient attention when washing the concrete after removing formwork.
● Provide protection such as covering with a sheet in order to prevent outflow due to rain etc.
● Twice application of Disparlight DV is recommended to prevent uneven exposure of aggregates by washing. The amount of each coat should be approximately 1/2 of the standard application amount of Disparlight DV.
● After application of Disparlight DV, the coat dries up but when it comes into contact with fresh concrete, it becomes wet and effective again

Surface preparation agent for concrete joint

◆Usage instructions
● After placing and breathing of concrete are done, spread Cebo Hardener 20 with sprayers or water pots.
● Application amount: 300g/m2, 60m2/can

Features
● The polymer concrete layer covers the concrete surface and laitance, and also prevents hair cracks caused by drying shrinkage.
● Works perfect at the congested rebar areas, and can shorten the work periods.
● The polymer concrete layer formed on the concrete surface is effective for preventing hair cracks caused by drying shrinkage.
● Enhances wear-resistance and effective for preventing dust.

◆Working method

Cautions

● Do not use the product under rainy and freezing weather.
● Store the product at temperatures of 5~40°C.
● The product freezes at 0°C or below and coagulates at 60°C or above, and does not return to the original condition.
● Storage period is approximately 6 months.

Angle-adjusting hardware for dam formwork

Features
● Firmly fastens dam formwork, especially the erection of cantilever.

◆Size

◆Examples of use

Slip-proof hook anchor

Features
● Secured non-slip effect solves a weakness of conventional hook anchors.
● By being attached to the Dummy Bolt, the anchor can be set from outside of the formwork.

* We also manufacture Pig-Tail Anchors of other sizes as made to order.

◆Characteristics

◆Allowable load

◆Example of use

The relationships between concrete strength and embedding length of Pig-Tail Anchors.

Bolt for installing Pig-Tail Anchor

Features
● Tapered tip enables easy-extraction of the product even after placing concrete.
● Tapered tip also enables easy-insertion of She Bolt, and assured attachment.

◆Examples of use

◆Parts for Dummy Bolt

Unit: mm

◆Size

Rebar assembling stand for footing beam work

Features

● Scaffolding for assembling rebars is not necessary.
● Height adjustment function enables accurate rebar arrangement.
● Hairpin rebar can be easily fixed.

Size

Use D25 hairpin rebar (not included in the product configuration).

Cautions

● The vertical load allowed for each product is up to the above-mentioned “allowable load.”
● Be sure to align the top-end level of all products so that they will receive a uniform load.
● Perform plumbing and correction of the product before arranging reinforcement.
● Arrange the product vertically through the use of a stay bar, etc., to prevent lateral movement as shown in Fig. 1.
● Do Not use the product as scaffolding.
● Precautions for arrangement
– Space the products so that they will not receive a load that exceeds the allowable load.
– Supporting the product is complicated where beam reinforcements are crossed or around pillars. Therefore, be sure to examine the load before arranging the product.
– The top end of the leveling concrete on which the baseplate is installed should be finished level.
– Be sure to secure the baseplate with four anchor bolts.
– Cure the leveling concrete until its compressive strength is enough to obtain the predetermined anchor bolt strength.
– Tighten the level adjusting bolt with a tightening torque of approximately 2.94kN・cm (300kgf・cm). In case the bolt may be loosened due to vibration, etc., reinforce the bolt by welding.

[Example of reinforcement of level load]

Main reinforcement supporting stand for small footing beam work

Features
● Rebars (D25) on-site can be used.
● Hairpin rebar can be mounted easily with a 3/8” spanner.
● Deformed bars (D25, D22) can be used as hairpin rebar.
● Hairpin rebar can be fixed at any position (height).
● After marking, the product can be fixed at a precise position by using the product base.

Allowable load: 2.94kＮ（300kgf）

* D29 is also available as Made-To-Order.

Cautions:

● Use a rebar (D25) as a bracing strut bar.
● Secure the product base firmly to the leveling concrete with concrete anchors or concrete nails.
● Use the product where beam height is 1m or less and width is 400mm or less.
● Be sure to use the product within the allowable load

Positioning & fastening bolt for dam formwork panel

* Made-To-Order is also available.
Features
● Designed to secure positioning and tightening of dam formwork.
● The guide hole at the tip enables quick assembly.
● Can be used for tightening large formwork instead of using Form Tie and Plastic Cone, and even attachable from outside with Separators attached.

◆Parts for She Bolt
Square washer for She Bolt

Unit: mm

◆Size

Plastic Spacer for securing covering depth

Tower type
(for slab upper rebar)
                   

Dice type
(for slab lower rebar)
                             

Donut type
(for wall, column, and beam)
             

For falsework bracket insert to secure covering depth

Features
● Because the cone shape avoids bending stress on the attaching bolt, it allows for secure installation of the falsework bracket. This reusable design also simplifies extraction. The heat-shrinkable tube, which covers the product’s surface, further facilitates removal from the concrete.

◆How to use
● Use the product with Falsework Bracket Insert.
You can directly install falsework brackets to the product.
● After the removal of the bracket, extract the product and cover the hole with mortar, etc

Insert for falsework bracket

If you use double head bolt to temporarily fasten the product, the drill holes in the face plate of metalform can only be clearance holes of W3/8, resulting in easy repairs.

◆Size
Main body

◆Allowable load
● Allowable shearing load: 58.0kN/ pc (6,000kgf/pc)
● Allowable tensile load: 49.0kN/pc (5,000kgf/pc)
* Concrete compressive strength: 21N/mm2 (210kgf/cm2).
Cautions
● Main Body 35-220 must be used only for a channel brackets with rebar attached below.
● For High Bracket, use the product Main Body 35-300.
● The allowable load may vary according to the installation spacing. Please consult us about designing and execution of work.
● Installation rebar plates (High Form for metal, High Plate for plywood) are available to secure accuracy of the product installation.

Steel bolster for slab / bottom beam wor

Features

● Special steel wire enables the higher strength than the conventional bolster.
● Coated with compressive-resistant high-performance resin.

Connecting bolster
■ Bar type bolster

Slab bolsters

Prevention cover for concrete infiltration on pile head

* Other sizes are made to order.
* The legs fit any cover.

Features

● Installation is easy with three hanging legs

Cautions

● Do not apply ready-mixed concrete directly to the cover with concrete pump.
● When the placing height (h) from the concrete pouring position to the cover is 2m or more, or the chipped surface of the pile and the hanging legs are not engaged sufficiently, provide the following reinforcing measures.
● Before placing leveling concrete, place ready mixed concrete approximately 100 mm~150 mm in thickness from the bottom of the cover, and cure it for two to three days.
● Bind the main reinforcement of the pile and the hanging legs with tie wire, etc.

For large size formwork

Form Tie W5/8

Cones
Plastic Cone W5/8

Metal Cone W5/8

Resin Cone A W5/8

Separator W5/8

Made-To-Order is also availables.
Please specify the total length (wall thickness), thread length, material, and whether crimped or not (Separator)

*1 Strong Washer 5/8 (King Washer) with allowable load of 72kN (7,200kgf) is also available.
*2 Made-To-Order for different size of Flat Rib RB is available. Please specify the dimensions, thickness and hole diameter.
Washers
Flat Rib K W5/8 (S45C)
Flat Rib RB16-9-150

◆Allowable load

* W3/4, W7/8 and larger diameters are available.
Please specify the thread diameter, thread length, and total length. When ordering square washers, please specify the dimensions, thickness and hole diameter.

Large size sliding formwork for civil engineering work

The Sliding Form Unit has been developed to realize efficient formwork for large concrete structure, such as culverts, water channels, noise insulating walls, wave breakers, bank protections.

Features
● Wide Panel Beams (general-purpose battens) and Okabe’s original construction materials enable the application of the USF method to various types of construction projects.
● Users can easily perform assembly and disassembly of formwork using tools such as a ratchet spanner.
● Many design patterns are available.
● As supporting material, Lark 60 System (maximum bearing capacity: 60 tons/piece) is used.

◆Examples of use

Wave breaker upper formwork

Bank protection

Box culvert side wall

Flood barrier

Slip form

Inverted T retaining wall

Lark 60 System (falsework)

Arched culvert

Water channel

Retaining wall

CS Rebar Joint is:

Mechanical joint for rebars by connecting them with a relay bolt.
Applicable for rebar diamiters of D13 to D51.
Compression of the sleeve is even available to the construction site.

Features

• Reliable joint strength ensures durability and stability.
• For convenience, quick tightening with a torque wrench is possible.
• To get started, only a one-day training session is required for qualification.
• Additionally, a portable crimping device is available for ease of use.
• The system allows for joining up to 2-size differences in diameters, enhancing versatility.
• It’s also capable of joining up to 1 rank difference in material, providing flexibility in application.

■Type I

Either side is axially movable and rotatable.

Dimension                                                                                                                     (mm)

* L, RL, KL, and R1 are standard dimensions obtained by calculation.

◆ Working procedures

■Type II

Although either side is non-rotatable, it is axially movable.

Dimension

* L, RL, KL, and R1 are standard dimensions obtained by calculation.
◆ Working procedures

■Type III

Neither sleeve is movable nor rotatable, indicating a fixed position.

Sleeve dimension                                    Unit〈mm〉                                        Relay bolt dimension

* L, RL, KL, and R1 are standard dimensions obtained by calculation.

◆ Working procedures

Either side is axially movable and rotatable.

■Type IV (Different diameters)

Rebar Dia.

Difference of 2 sizes          Unit〈mm〉

* RL, KL, R1 and R2 are standard dimensions obtained by calculation.

Torque Value

Rebar cut length

Calculation examples (using Type I, D25)
Regarding case ①, when measuring 40d from the rebar insertion side of the sleeve: the rebar length is calculated as 40d + RL = 40 × 25 + 83 = 1,083mm.
Conversely, in case ②, when measuring 40d from the joint side of the sleeve: the rebar length changes to 40d KL = 40 × 25 – 46 = 954mm.

Table of standard rebar cut lengths (in case of 40d)                                            Unit〈mm〉

Disclaimer
Should a malfunction occur to the CS Rebar Joint, we will respond in accordance with the disclaimer below. We are not liable for the following cases:

• Malfunctions resulting from not following precautions specified in this catalog are not covered.
• Should there be any issues arising from design or work that contradicts the guidelines mentioned in this catalog, they are not included.
• The warranty does not cover malfunctions due to usage beyond the intended purposes as outlined in this catalog.
• Problems caused by work or handling based on non-standard specifications requested by users, such as designers or contractors, are excluded.
• Changes in specifications and performance post-delivery that lead to malfunctions fall outside our responsibility.
• Using, storing, or transporting the product under conditions that deviate from those generally anticipated for its development, manufacturing, and sales voids coverage for any resulting malfunctions.
• Force majeure events, including natural disasters, land deformation, ground subsidence, fires, explosions, riots, etc., that cause malfunctions are not our liability.
• Finally, defects not reported immediately after discovery are not eligible for claims.

Expand polystyrene chamfer/joint strip

Foamed chamfer bars

◆Tapered on both sides                                    L dimensions = 2,000mm
In order of product number

In order of size

◆Tapered on one side

In order of product number

In order of size

Features of expanded polystyrene chamfer strips/bars
● Does not absorb water and free from warp, distortion, etc.
● Can be easily cut with a saw.
● Delivers beautiful finishing surface as concrete hardly adheres

Expanded polystyrene chamfer strips

Square expanded polystyrene chamfer bars

Two-stage expanded polystyrene chamber bars

◆Tapered on both sides

◆Tapered on one side

Basket-shaped assembled reinforcement bar for pile head

* Please contact us for special order items.

Features

● Installation is completed just by inserting the product into the pile from the pile head.
● Reinforcement of the inside of the pile and concrete formwork can be performed simultaneously.

Splicing sleeve for rebar joint

● OS Rebar Sleeve is:
Mechanical joint for rebars, connecting with a sleeve and a wedge. at which two rebars are joined by press fitting a wedge by hydraulic equipment into the insertion holes in the elliptic cylinder sleeve which is fitted to the overlapping part of the rebars

◆Applicable Rebar

Diameter: D10, 13, 16, and 19
Material : SD295A, SD295B, SD345
※ Please consult with us for the installation of the product

Shape & Dimensions

Sleeve

(mm)

Wedge

Rebar Diameter	Wedge length L	Wedge diameter D	L1	Shape
D10/D13	37	10	12
D16	43	14	10
D19	48	16

Joint method

Press fit equipment

Necessary work space (separate type)

Usage examples

Cautions

Please read the technical documents and instruction manual before designing and working.

Mechanical joint for concrete joint

Mechanical joint for rebars, consisting of CS Rebar Joint-U (embedded side) and CS Rebar Joint-S (joint side), used for reinforced concrete construction joint in an opening, etc.

Features

● No drilling on formwork panels.
● Post-assembly enables a secure and wide working space.
● Secures the bearing force of rebar.
● Attendance of one-day training course required for qualification of sleeve compression.

Applicable Rebar

● Diameter: D13, D16, D19, and D22
● Material : SD295A, SD295B, SD345
※ Please consult with us for the installation of the product.

Standard dimensions

Table of standard dimensions

Cautions

● Do Not use the product once deformation is found.
● Make sure to read the instruction manual before use.
● Do Not purposely change the shape of the product.

PVC chamfer for balcony gutter

Features

● Since this product is made of PVC, it is free from warp or twist, and formwork can be cleanly removed.
● After the concrete hardens, no chipping work is required for the slope or corner area of the balcony gutter.
● Can be reused at least 10 times, which substantially reduces the cost per use.
● Since the product is hollow, it is lightweight and easy to carry.
● Can be cut with a circular saw as necessary. The product be easily connected with the included joint material.
● Made-To-Order available ter curved-corners to your specifications

Size

● When the cutoff width is 100mm or more, attach plywood ①, etc.
● When the cutoff depth is 40mm or more, paste backup material ②.
● For cut ends, use joint material.

Working method

(1) Fasten this product to a batten with duplex headnails, etc., as shown in the figure below.
(2) After placing concrete, be sure to remove the nails first, and then take out this product before disassembling the formwork.
* Do not open formwork with a pry bar, etc.
* For cut ends, use joint material.

Curved-corner, joint materials and nail size

Light-weight cylindrical paper formwork

Size

● The standard length is 4m.

Features

● Lightweight and easy to handle.
● Excellent durability.
● Tubes are made from special water-resistant boards and can be cut with a saw and nailed.
● Special film on the tube surface enables easy separation of formwork.
● Single-piece and Two-pieces are available.
● Please consult with us for the longer length.

Winding sleeve for through-hole

List of nominal diameters D φ

Features

● Highly durable.
● Made-To-Order is available
● Can be used as permanent formwork, and eliminates disassembly.
● Galvanizing and PVC coatings are available

Expanded polystyrene chamfer/joint strip

Foamed chamfer bars
◆Tapered on both sides
L dimensions = 2,000mm

In order of product number

In order of size

◆Tapered on one side

In order of product number

In order of size

Measuring pole for formwork and concrete top-end

Features
●The pole tip’s design actively prevents measuring errors by avoiding concrete adhesion and utilizing a wear-resistant resin coating.
● The product consists of two components of a pole and a pole ruler – to enable simultaneous measuring of the formwork level and the concrete top end level, which facilitates execution of exposed concrete finish.
● Top end of the pole base is a concrete slab top end, which facilitates trowel finishing of reference slab.
● The manufacturer treats the pole ruler with alumite and applies a gold finish. It also features highly precise graduations printed in black.

● Speedy collimation because of the slip prevention mechanism provided for the collimation mark.
● Speedy plumbing due to the level positioned at the upper part of the pole.
● Made of aluminum alloy.

Cautions
● The reference black ink should be marked 1,000mm from the slab formwork top end.
● After use, wash away adhered concrete with water immediately.

Measuring tool for covering depth on slope work

◆Size

Features
● Suitable for any type of slab with its long adjusting width.
● Does not fall over even if it is hit by a pressure hose.
● Thermal insulating material is also acceptable because of its wide base.
● Easy post-treatment after placing concrete.
Cautions
● Install the product near a spacer.
● Fasten the product securely to formwork with nails or plastic nails.
● Applicable to the covering depth of up to 50mm.