Hydraulic Cylinder for Tarp Systems
Product Description
Product Detail
The HR4752 hydraulic cylinder for tarp systems is a catalog-listed cylinder for gantry raise applications. The HCIC-2026 catalog identifies the model with a 2-inch bore, a 1.25-inch rod and a 36-inch stroke. Its listed application is a gantry raise cylinder used in a hydraulic tarpaulin system.
A tarp-system cylinder is not selected by stroke alone. It works with the gantry, arm geometry, cover material, mounting points and hydraulic control. The cylinder must provide the required movement while fitting the available space and avoiding interference with the tarp frame during extension and retraction.
I. HR4752 Specifications
| Parameter | Catalog value |
|---|---|
| Model | HR4752 |
| Product category | Tarp system hydraulic cylinder |
| Bore | 2 in |
| Rod diameter | 1.25 in |
| Stroke | 36 in |
| Catalog application | Gantry raise cylinder |
| Source | HCIC-2026 catalog, p. 8 |
The table contains the model-specific values visible in the catalog. The catalog page does not provide a model-specific working-pressure figure, weight, closed length or flow requirement for HR4752, so those values are not invented here.
II. Product Construction and Operating Role
The HR4752 is used as an actuator in a tarp-system mechanism. The hydraulic cylinder converts pressure and flow into linear movement. That movement is then transferred through the gantry or arm structure to raise, position or move the cover system, depending on the machine arrangement.
The 36-inch stroke defines the cylinder's linear travel. The actual tarp movement depends on the linkage ratio, pivot positions and the geometry of the gantry. A cylinder with the correct stroke can still be unsuitable if its mounting centers or movement angle do not match the existing frame.
The 2-inch bore and 1.25-inch rod are important for system matching. Bore relates to available pressure area, while rod diameter affects the rod-side area, mechanical guidance and connection geometry. Final force and speed calculations require the actual hydraulic pressure and flow data from the machine circuit.
III. Why the HR4752 Matters in Tarp-System Design
3.1 A defined gantry-raise application
The catalog positions HR4752 as a gantry raise cylinder. This gives an OEM or replacement buyer a clearer starting point than a generic cylinder description, but the final approval still depends on the actual gantry assembly and tarp mechanism.
3.2 36-inch stroke for cover-system movement
The 36-inch stroke provides a substantial linear movement range for a tarp-system actuator. The installer should map this travel to the gantry's raised and lowered positions, checking both end positions and the full path between them.
3.3 2-inch bore and 1.25-inch rod combination
The bore and rod sizes provide the dimensional basis for cylinder replacement and hydraulic force review. They should be checked with mounting pins, brackets, hose connections and available clearance rather than treated as isolated numbers.
3.4 Suitable for a focused replacement inquiry
The HR4752 model number and application description can help maintenance teams identify the intended part family. For a reliable replacement, send photographs, mounting dimensions, stroke requirements and circuit details so the cylinder can be compared with the existing system.
IV. Installation and Selection Checks
Before ordering the HR4752, review the following points:
- Gantry movement: Confirm the required raised and lowered positions and the cylinder travel used by the mechanism.
- Mounting centers: Measure the pin-to-pin or mounting-center distances in the relevant positions.
- Clearance: Check the rod, barrel, hose and fittings against the tarp frame, load body and nearby equipment.
- Linkage geometry: Review the pivot locations and mechanical advantage across the complete stroke.
- Hydraulic circuit: Confirm whether the existing system is single-acting or double-acting and verify valve function before replacement.
- Hose routing: Protect the hose from rubbing, sharp bends and contact with moving tarp components.
- End-position control: Check whether the mechanism or hydraulic circuit requires mechanical stops or controlled movement at the ends of travel.
- Service access: Leave enough space to inspect the rod surface, connections and mounting points after installation.
A cylinder should not be forced to compensate for a bent gantry, damaged pivot or incorrect mounting angle. If the mechanism is not aligned, replacing the actuator alone may not solve the operating problem.
V. Applications
The HR4752 hydraulic cylinder for tarp systems is intended for tarp-system and gantry-raise applications identified in the HCIC catalog. These systems are commonly used on truck and trailer equipment that needs a powered cover movement, but the actual equipment type, frame layout and tarp mechanism must be confirmed for each project.
The article does not claim that HR4752 fits every tarp system or every truck model. The correct cylinder depends on the machine's mounting geometry, motion requirement, hydraulic circuit and available space.
VI. What to Send for an OEM or Replacement Inquiry
For an HR4752 project review, prepare:
- Existing cylinder model and photographs
- Bore, rod and stroke confirmation
- Extended and retracted mounting-center measurements
- Gantry or arm drawings
- Pin, clevis or bracket details
- Hydraulic schematic, pressure and flow information
- Port and hose requirements
- Tarp-system movement sequence
- Working environment and contamination exposure
- Quantity and destination
If the cylinder is being replaced after a failure, include photographs of the mounting points, rod surface, barrel, pins and surrounding structure. This helps separate a cylinder identification question from a broader mechanism problem.
VII. FAQ
VIII. Conclusion
The HR4752 is a focused tarp-system actuator with a clear catalog identity: a gantry raise cylinder with a 2-inch bore, 1.25-inch rod and 36-inch stroke. Those values support an initial replacement or OEM review, but they do not replace a check of mounting geometry, linkage, hose routing and hydraulic control.
Send HCIC the existing cylinder information and tarp-system drawings to confirm whether the HR4752 hydraulic cylinder for tarp systems matches the actual machine. Reviewing the cylinder together with the gantry is the safer route to a dependable replacement decision.
IX. About HCIC
HCIC manufactures hydraulic cylinders, hydraulic power units and hydraulic systems for vehicle, trailer and industrial applications. Technical suitability should be confirmed against the actual equipment design and operating conditions.