Zupper 20-Ton Low Profile Hydraulic Cylinder RMC-201

In heavy infrastructure and power generation sectors, maintenance teams frequently encounter a critical physical contradiction: the need for massive lifting force within an exceptionally narrow clearance. When replacing bridge bearing pads or leveling industrial transformers, the insertion gap may be limited to just 55mm. In such confined spaces, deploying two 10-ton cylinders side-by-side to achieve the required force is physically impossible and structurally unsafe.

The Zupper low profile hydraulic cylinder RMC-201 resolves this heavy-duty bottleneck. Widely referred to in the civil engineering industry as a pancake jack or flat jack, this ultra-compact cylinder houses 20 tons of hydraulic lifting power within a collapsed height of just 52mm. It is the definitive solution for contractors requiring extreme load-bearing capacity in restricted environments.

Zupper 20-ton low profile hydraulic cylinder RMC-201

Heavy infrastructure deployments

By doubling the lifting capacity of standard low-profile models without significantly increasing the cylinder height, the RMC-201 is specialized for high-tonnage infrastructure tasks:

• Bridge bearing pad replacement: Elevating massive concrete highway girders just enough to slide out deteriorated elastomeric bearing pads and insert new ones, ensuring the structural integrity of the overpass.

• Transformer and generator leveling: Providing the precise, concentrated upward force required to level multi-ton electrical transformers inside cramped substation enclosures before grouting.

Engineering directive: The incremental lifting protocol (Cribbing)

Due to its pancake-style architecture, the RMC-201 possesses a restricted maximum stroke of only 11mm. When a project requires lifting a 20-ton load higher than 11mm in a tight space, operators must not attempt to force the cylinder past its physical limit. Instead, our technical specialists mandate the incremental lifting (cribbing) method:

1. Initial lift: Pressurize the cylinder to lift the load to its maximum safe extension (approx. 10mm).

2. Temporary support: Insert high-grade steel shims or structural cribbing blocks directly under the load to hold it securely in place.

3. Retraction and base shimming: Depressurize the pump, allowing the spring-return plunger to collapse. Insert a solid steel plate directly underneath the base of the pancake jack.

4. Secondary lift: Re-pressurize the cylinder to lift the load another 10mm. Repeat this cycle until the desired operational height is achieved safely.

Technical specifications

To ensure this 20-ton flat jack conforms to your specific site clearances, please review the critical dimensions below:

Recommended power unit: Zupper CP-390 manual pump

Generating 20 tons of hydraulic force via manual pumping requires significant physical exertion if paired with an ultra-micro pump. Conversely, using an oversized pump creates a severe risk of over-extending the short 11mm stroke.

For the RMC-201, we strictly recommend the Zupper CP-390 two-speed manual hand pump. The automatic two-stage mechanism reduces operator fatigue when lifting heavy loads, while its mid-range fluid output ensures you can control the plunger's micro-millimeter advancement safely without blowing the internal seals. Click here to view Zupper CP-390 pump specifications and pricing.

Regional corporate supply for Singapore and Malaysia

Asia Pro Equip bridges the gap between premium Japanese-standard hydraulic engineering and the heavy infrastructure demands of Southeast Asia. We maintain strategic inventory of the Zupper RMC-201 within our regional logistics hubs, ensuring rapid dispatch to highway construction sites and power plants across Singapore and Malaysia.

Operating on a strictly transparent corporate pricing model, our technical sales division is ready to process your urgent RFQ and configure the safest cylinder-and-pump combination for your project.

Corporate Sales & RFQ: [email protected]