Cylinder Group 8J8924/180-4327/307-9369/300-0688/296-0608/171-1232
Articulated/Off Highway Caterpillar 776C, 777D, 777F
Hoist-Telescopic Cylinder Bore 241,30 Stroke 1.925,80 Hydraulic Cylinder
8J-8924/1804327/3079369/3000688/2960608/1711232
Compatible Brand: Caterpillar
Part Number: 307-9369 (3079369)
Superseded / Interchange Numbers: 8J-8924 (8J8924), 171-1232 (1711232), 180-4327 (1804327), 296-0608 (2960608), 300-0688 (3000688)
Part Name: Off-Highway Mining Truck Telescopic Body Hoist Hydraulic Cylinder Group / Assembly
Teknik Özellikler / Technical Specifications: Bore: 241.30 mm / Stroke: 1,925.80 mm / Weight: Not Specified (Heavy Mining Class Multi-Stage Alloy Steel Structure) / Telescopic Hydraulic Cylinder
Compatible Machinery: Caterpillar Off-Highway Mining Trucks & Tractors (776C, 777D, 777F series)
What It Does:
Serves as the multi-stage telescopic body hoist hydraulic cylinder assembly mounted between the main chassis frame and the dump body on Caterpillar 776 and 777 series 100-ton class off-highway haul trucks. Powered by high-pressure, high-flow hydraulic fluid across a 241.30 mm bore and 1,925.80 mm stroke, it generates massive linear mechanical thrust to extend its stages smoothly, raising the fully loaded 100-ton dump body to discharge bulk rock, ore, and overburden, and retracting to lower the empty body back securely onto the truck frame.
Importance:
A critical kinematic and ultra-high-thrust hydraulic actuator essential for rapid dumping cycle times, multi-stage lifting stability, and site safety in demanding open-pit mining and quarrying operations. Engineered with precision-honed multi-stage barrel sleeves, high-strength alloy guiding sections, and reinforced seals, it effectively resists severe cyclic side-thrust loads, heavy axial compressive stresses, and dynamic hydraulic pressure spikes caused by uneven payload dumping, preventing seal bypass, stage binding, and fluid leakage under continuous heavy-duty cycles.
As Seçkin Makine, we manufacture this product as an aftermarket item fully equivalent to the original specifications in terms of raw materials, technical dimensions, and performance characteristics. This product comes with a 1-year warranty from the invoice date.