NPG3 series

Robot hand

3-jaw parallel gripper NPG3 series

Sealed type ideal for machining environments such as cutting chips, dust, coolant fluid, etc.

Ideal for machining environments with cutting chips, dust, coolant fluid, etc. (IP67)
Large ID gripping force
Unique sealing structure reduces the number of pipes

Download catalogue (PDF)

Download instruction manual (PDF)

How to order

Please install a check valve in the air-pressure circuit so that the gripper will not release a workpiece even if the air pressure drops down.
When the jaw stroke is detected by the reed switches, mount reed switched on the grooves on the outer periphery of the product. Up to 2 reed switches can be mounted.

Specifications

Model	Jaw stroke diameter (mm)	Gripping force ^{(Note 2)}			Repeatability (mm)	Mass (kg)	Air consumption per reciprocating (cm³)	Air pressure (MPa)	Operating temperature (℃)	Protective class
Model	Jaw stroke diameter (mm)	Measurement distance ^{(Note 1)} L(mm)	OD gripping (N)	ID gripping (N)	Repeatability (mm)	Mass (kg)	Air consumption per reciprocating (cm³)	Air pressure (MPa)	Operating temperature (℃)	Protective class
NPG306	12	40	460	900	±0.01	0.5	33.3	0.2～0.8	5～60	IP67
NPG308	16	40	1000	1900	±0.01	1.3	68.4	0.2～0.8	5～60	IP67
NPG310	20	40	2000	3200	±0.01	2.1	139.7	0.2～0.8	5～60	IP67

The measurement distance is the distance from the master jaw centre to the gripping centre.
Value at supply air pressure 0.6 MPa.

Gripper allowable load

For more information on the allowable load of each gripper, please see the following link.

Gripper allowable load

Option

Reed switch

Seal kit

Gripping force

Click the model number and the gripping force diagram will be displayed. The gripping force, F is a product of the actual gripping force per jaw, F1 and the number of jaws