Long Stroke- Specifications (English)


Information applies to models P-6950, P-7000, P-7100, P-7150 and P-7200, also known as Long-Stroke Grippers. This product cannot be sold outside of the United States.


ASSUMPTIONS Used to Determine Maximum Payload:

  • System Pressure = 100 psi (6.9 bar) | Maximum = 120 psi (8.3 bar)
  • Maximum Acceleration/Deceleration = 1G – 386 in/s2 (9.8 m/s2)
  • Part Friction (µ) = 0.25 (Does Not Apply to Encompassing Grip)
  • Finger Length = 0.00 in (0.00 mm) | “PX” Models = 5.00 in (127.0 mm)

Model

Height
Dimension
“A”
Width
Dimension
“B”
Full Close
Dimension
“C”
Full Open
Dimension
“D”
Weight Centering
P-6950

3.23 in

1.97 in

5.75 in

7.75 in

2.80 lb

+ 0.001 in

P-7000

3.74 in

2.25 in

7.80 in

10.80 in

5.30 lb

+ 0.001 in

P-7100

4.72 in

2.73 in

10.28 in

14.28 in

9.80 lb

+ 0.001 in

P-7150

6.21 in

3.71 in

10.25 in

12.75 in

28.50 lb

+ 0.001 in

P-7200

6.21 in

3.71 in

12.95 in

18.95 in

39.88 lb

+ 0.001 in

Model

Stroke
Length
Maximum
Payload
Friction
Grip Open/Close
Select by Payload (Encompassing Grip) - 2-Jaw - Parallel Grippers - RAD Robotic Accessories
Maximum
Payload
Encompassing
Grip Open/Close
Select by Payload (Encompassing Grip) - 2-Jaw - Parallel Grippers - RAD Robotic Accessories
Grip

Force

TOTAL

Open/Close

Grip

Force

PER JAW Open/Close

P-6950

2.00 in

55.0 lbs / 41.3 lbs

110.0 lbs / 82.5 lbs

352 lbf / 264 lbf

176 lbf / 132 lbf

P-7000

3.00 in

71.9 lbs / 61.3 lbs

143.8 lbs / 122.5 lbs

460 lbf / 392 lbf

230 lbf / 196 lbf

P-7100

4.00 in

138.4 lbs / 113.8 lbs

276.9 lbs / 227.5 lbs

886 lbf / 728 lbf

443 lbf / 364 lbf

P-7150

2.50 in

198.8 lbs / 157.3 lbs

397.6 lbs / 314.7 lbs

1272 lbf / 1007 lbf

636 lbf / 504 lbf
P-7200

6.00 in

198.8 lbs / 157.3 lbs

397.6 lbs / 314.7 lbs

1272 lbf / 1007 lbf

636 lbf / 504 lbf
Jaw Torque & Force – The forces and moments indicated in the chart below are for loads after the gripper has grasped the part and the jaws have completed their motion. If force and torque are applied to the gripper while the jaw is moving, please Contact Us for more information.

Model

Ma

Mb

Mc

F1

F2

P-6950

295 in-lb

432 in-lb

302 in-lb

62 lbf

42 lbf

P-7000

658 in-lb

1080 in-lb

1231 in-lb

246 lbf

169 lbf

P-7100

1095 in-lb

1825 in-lb

2020 in-lb

750 lbf

556 lbf

P-7150

1743 in-lb

2905 in-lb

3424 in-lb

1000 lbf

928 lbf

P-7200

1743 in-lb

2905 in-lb

3424 in-lb

1000 lbf

928 lbf



This comparison chart depicts a Grip Force (from each jaw) to Mass ratio of the Long Stroke parallel gripper Series to those of the competition (based on catalog information). Various aluminum alloys were employed with custom tempering and heat treatments to reduce mass. In all cases the new materials exceeded the durability of the classic materials in industry tests. In addition the design was refined to reduce the number of steel fasteners utilized by reducing parts count with current CNC tooling.


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