Product Made In Japan
Manufacturer: Yokota Industrial Co., Ltd.
Model: e-M500A

Feature

• • High tightening accuracy and automatic stop function.

Torque sensor: Our unique direct spindle detection method constantly monitors torque. The tool automatically stops at the set torque.

Ultra-miniature angle sensor (PAT): Equipped with an ultra-miniature rotary encoder, it detects the rotation angle and direction in 1 degree increments.

• • Heat generation countermeasures. The weak point of electric drives is “heat generation” and fans are installed in both the motor and hydraulic parts.

The motor and hydraulic parts are each equipped with a fan.
By providing a motor fan, the motor has been made smaller, reducing weight and increasing the number of fasteners.

• • High durability. Stronger and more secure.

To improve the durability of the hydraulic section, a double-end retention mechanism (PAT) and a check valve mechanism (PAT) are adopted.
Uses reinforced resin body.

Built-in tool cable reduces wire breakage problems.

• • Direct drive provides low vibration, low noise, and low reaction force
  • Newly developed outer rotor motor

A newly developed torquey, high-speed motor.

In conventional power tools, motor output is amplified by planetary gears, but by developing a dedicated motor specialized for tightening, we have achieved a gearless system. Tightening can be done more smoothly with less vibration, less gear noise, and more compact size and lighter weight.

• Built-in buzzer/LED notifies fastening results and abnormalities
• Impulse (oil pulse) mechanism
• The number of fasteners that can be fastened per hour has increased significantly (8 pcs/min → 20 pcs/min).

Compared to our conventional products e-M60 and e-M80 (e-M1100 is 15 bottles/min)

• • Diagonal galling tightening is significantly reduced.

Lighter. The newly developed outer rotor motor and reinforced resin body make this the lightest in its class.

Specification

Capable screw diameter	M5 to M6
Torque range (N・m) (Upper limit when tightening with Hard Joint)*1	3.0–10
Weight (kg) (including cable)	1.68 (2.27)
Fastenings per minute (pieces) *2	30
Overall length (mm)	236
Overall height (mm)	201
Cable length (m)	2
Outer side from spindle center (mm)	32.5
Bit size (mm)	6.35 A-type bit compatible
Rated speed (rpm)	300-4800
Vibration (m/s2)	<2.5
Noise (dB)	75
Standard accessories	1 protector (for tools), 1 hanger ring
Option	Extension cable 5m, extension cable 7m, extension cable 10m

*1: The torque range is a guideline calculated in a bolt test. Select a tool that matches the work conditions.

*2: Calculated based on our test conditions (fastening time 0.5 seconds, ambient temperature 30°C). Varies depending on work conditions.

Note: The cable length between eM and e-PDA should not exceed 10m.