Zupper Hollow Plunger Hydraulic Cylinder 20-Ton 100mm RCH-20100

Industrial pulling and extraction operations frequently face bottlenecks not due to a lack of force, but a lack of travel distance. When utilizing standard 50mm cylinders to stretch long concrete tendons or remove deep-seated pulleys, operators are forced into a repetitive cycle of pressurizing, stopping, adding steel spacer blocks, and resetting the system. This segmented process causes significant delays and increases the risk of misalignment under heavy loads.

The Zupper hollow plunger hydraulic cylinder RCH-20100 directly resolves this operational limitation. Engineered as an extended-reach, single-acting hollow plunger cylinder, it delivers 20 tons of pulling power across a massive 100mm stroke. This extended travel distance allows engineers to complete complex extractions and elongations in a single, continuous, fluid motion.

Zupper hollow hydraulic cylinder 20-ton 50mm RCH-2050

Primary field deployments

Featuring a 27mm through-hole to accommodate standard industrial threaded rods, the 100mm extension makes this unit indispensable for two specific operational profiles:

• Continuous structural tensioning: In commercial bridge and large-span slab construction, pre-stressed tendons require significant stretching. The 100mm travel capacity eliminates the need for multiple tensioning passes, ensuring maximum anchor seating efficiency and reducing the labor hours required per cable.

• Deep-shaft component extraction: Extracting gears, sprockets, or heavy bearings located deep along a machine axle requires sustained linear force. The RCH-20100 allows maintenance technicians to pull the component completely off the shaft taper in one continuous operation, bypassing the dangerous practice of stacking loose spacers.

Critical safety protocols for extended strokes

An extended 100mm plunger introduces unique physical stresses. To protect the internal Japanese-grade seals and prevent irreversible damage to the cylinder walls, the following operational mandates must be strictly observed:

• Absolute linear alignment: The threaded puller rod or tensioning cable must be perfectly parallel to the cylinder body. Any side-loading while the ram is fully extended at 100mm will instantly score the internal guide rings and compromise the hydraulic integrity.

• Tonnage buffering: While physically capable of 20 tons, maximizing the lifespan of this long-stroke equipment requires limiting standard continuous operations to a 14 to 16-ton threshold.

• Proper valve tooling: Maintenance and adjustment of the high-pressure release valves on the connecting pump lines strictly require wrenches or hex keys. The use of screwdrivers on these critical components is strictly prohibited, as it will strip the fittings and result in immediate system depressurization.

Specifications

Required high-volume power source

Deploying a 100mm extended cylinder requires a dependable, high-volume fluid source. Mid-range pumps lack the reservoir capacity to fully extend this ram safely. We strictly mandate operating the RCH-20100 in conjunction with the Zupper CP-700 manual hydraulic pump. Equipped with a large oil reserve and a dual-stage pumping mechanism, the CP-700 rapidly advances the long plunger without introducing air into the lines (oil starvation), before shifting into a precise tensioning phase. Click here to view Zupper CP-700 pump details and corporate pricing.

Regional distribution for Singapore and Malaysia

Asia Pro Equip supplies uncompromising, professional-grade hydraulic extraction tools to the most demanding civil and mechanical sectors. We maintain strategic, ready-to-deploy inventory of the Zupper RCH-20100 within our regional logistics hubs, ensuring rapid dispatch to industrial zones across Singapore and Malaysia.

Operating on a transparent, single-tier corporate pricing model, our technical sales division is ready to process your RFQ and verify system compatibilities for your upcoming turnaround projects.

Corporate Sales & RFQ: [email protected]