Double acting grab cylinder with 70 mm bore and 40 mm rod for excavator grapples, clamshell buckets and logging grippers requiring reliable clamping force.
Double acting grab cylinder with 70 mm bore and 40 mm rod for excavator grapples, clamshell buckets and logging grippers requiring reliable clamping force. heavy-duty operations.
Rated working pressure 35MPa, test pressure 44MPa. Bore 70mm, rod diameter 40mm, stroke 140mm with mounting distance 337mm. The high-pressure design delivers strong gripping force with a compact footprint for excavator attachments.
Cylinder body is manufactured from high-strength steel weldment with precision honed bore at Ra0.4 micrometer surface finish, ensuring smooth piston movement and consistent sealing. Dual G1/4 threaded ports with external bypass tube and integrated hydraulic check valve provide reliable locking and load-holding performance.
Piston rod is made of premium steel with hard chrome plating exceeding 0.03mm thickness for superior hardness and wear resistance. Equipped with Hallite and NOK sealing systems for zero leakage performance under frequent cycling. Flange mounting with four through-holes ensures secure installation on grab frames.
Full compliance with JB/T10205 and GB/T15622 testing standards. Finished with RAL9005 black coating at 60 to 80 micrometer thickness. CE and ISO9001 certified. Custom stroke lengths, mounting configurations and port sizes available for OEM and ODM requirements.
Typical values — final specifications are matched to your drawings or sample.
| Bore | 70mm |
|---|---|
| Rod | 40mm |
| Stroke | 140mm |
| Max operating pressure | 35MPa |
| Weight | 13.0 kg |
| Material | Steel |
| MOQ | 1 pc — sample orders welcome |
| Lead time | 45–60 days samples; 30–45 days for 50+ pcs |
Bore, rod, stroke, working pressure, mounting type and port threads, or a drawing/sample. We quote within 48 hours; MOQ is one sample.
Yes. Each cylinder is pressure-tested at 3000 PSI and 100% inspected before dispatch, with an 18-month warranty and full maintenance kits available.
Yes. We build to your drawings or reverse-engineer from a sample, with clevis, cross-tube, trunnion and custom mounts to match your machine.
Send us your drawings — get a detailed quote within 48 hours.