Product Made In Japan
Manufacturer: Yokota Industrial Co., Ltd.
Model: YLa Series

A fastening tool with low noise, low vibration and low reaction force

Basic model of impulse wrench

What is an impulse wrench (oil pulse wrench)?

Compared to impact wrenches, which utilize the striking force of metal, a hydraulic chamber (liner case) is placed between the motor and shaft, and the oil inside is suddenly compressed, and the pressure is transmitted to the shaft to generate rotational torque, significantly reducing the noise and vibration generated by the tool.

Fastening torque (generated torque) adjustment Hydraulic pressure adjustment function

The generated torque can be adjusted by opening and closing the relief valve (adjustment bolt) inside the liner case.

Model	Capable screw diameter	Tightening torque (N・m) (Reference value at 0.6MPa)	Overall length (mm)	Weight (kg)	Bit size (mm)/square drive (mm)
YLa60A	M6	11 to 20	130	0.78	6.35
YLa60B	M6	11 to 20	130	0.78	6.35
YLa70A	M6 to M8	20～28	131	0.79	6.35
YLa70B	M6 to M8	20～28	131	0.79	6.35
YLa80A	M8	24～35	138	0.81	6.35
YLa80B	M8	24～35	138	0.81	6.35
YLa60	M6	13～22	130	0.78	9.5
YLa70	M6 to M8	24～35	131	0.79	9.5
YLa80	M8	32～50	138	0.81	9.5
YLa90	M8 to M10	47～65	148	0.95	9.5
YLa110	M10 to M12	60 to 95	164	1.33	12.7
YLa120	M12	95～130	171.5	1.7	12.7
YLa140	M14	130 to 160	185	2.2	12.7