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中文CRD3205H Casing Rotator
Product Overview
The SEMW CRD3205H Casing Rotator is a high-capacity hydraulic casing rotation system engineered for Ø2000–3200 mm fully cased foundation drilling. Its performance and dimensions make it a candidate for major deep foundation works where large steel casing, excavation resistance and lifting logistics require detailed engineering assessment.
Unlike smaller CRD models, the CRD3205H combines a published operating rotary torque of up to 9080 kN·m with 7237 kN casing pull-out force. Its hydraulic power pack uses Cummins QSX15-500 and DCEC QSC8.3-C260 engines. These figures describe equipment capability, not guaranteed performance for a particular ground condition.
Technical Specifications
These specifications are taken from the supplied CRD3205H brochure images. Torque and speed settings correspond to different operating modes; instantaneous peak ratings are not continuous operating values.
Base Machine — CRD3205H
Hydraulic Power Pack — Dual-Engine System
Base Machine Parameters
| Parameter | CRD3205H specification |
|---|---|
| Drilling diameter | Ø2000–3200 mm |
| Rotary torque | 9080 / 5368 / 3034 kN·m |
| Instantaneous peak rotary torque | 10593 kN·m |
| Rotary speed | 0.6 / 1.0 / 1.8 rpm |
| Maximum casing downward force | 1100 kN |
| Casing pull-out force | 7237 kN |
| Instantaneous peak casing pull-out force | 8370 kN |
| Pressure-pulling stroke | 750 mm |
| Base machine weight | 96 t (with wedge-shaped auxiliary clamping and transition frame; without reducer blocks) |
Hydraulic Power Pack Parameters
| Parameter | CRD3205H specification |
|---|---|
| Engine combination | Cummins QSX15-500 + DCEC QSC8.3-C260 |
| Engine power — Cummins | 410 kW / 1800 rpm (373 kW / 2100 rpm rated) |
| Engine power — DCEC | 196 kW / 1800 rpm (194 kW / 2200 rpm rated) |
| Fuel consumption (as shown in brochure) | 217 + 194 g/kWh (at maximum power rate; respective engines) |
| Power pack weight | 10 + 8 t |
| Control mode | Wired / wireless remote control |
Large-Diameter Foundation Project Planning
For Ø2000–3200 mm casing work, machine selection must account for more than nominal diameter. The combination of rotary loading, casing friction and auxiliary excavation can materially influence the required construction setup.
Casing and Ground Resistance
Review the geological profile, groundwater conditions, casing length, wall thickness and expected friction or obstructions before selecting operating settings.
Power and Working Platform
Plan space and access for the base machine, the separately configured hydraulic power pack, lifting equipment and supporting excavation tools.
Lifting and Transportation
Account for the 96 t base-machine brochure configuration, transport dimensions, site access and appropriate lifting procedures.
Construction Method Compatibility
Check pile design, excavation equipment, casing extraction sequence and any temporary works required for a safely engineered foundation solution.
Full Casing Construction Method
The CRD Series uses hydraulic rotation and vertical force to advance steel casing while compatible excavation equipment removes material from inside it. The casing provides bore support during the works. The sequence and supporting machines should always follow the project-specific method statement.
Align Equipment
Position the rotator and prepare casing, lifting systems and excavation tools.
Advance Steel Casing
Apply the selected rotation and vertical force while monitoring resistance.
Excavate Within Casing
Remove soil, boulders or approved obstructions using suitable equipment.
Complete Pile Works
Finish foundation construction and coordinate casing extraction according to design.
Applications & Model Selection
The CRD3205H can be assessed for large-diameter fully cased drilled foundations in infrastructure projects, including major bridge foundations, urban deep foundation works and construction where underground obstacles require casing-supported excavation. Individual applications must be verified against project ground conditions and auxiliary equipment.
When to Evaluate the CRD3205H
Consider this model when a project requires Ø2000–3200 mm drilling or a casing rotation/extraction configuration beyond the capacity of smaller CRD units. The CRD2605H has a different drilling range and torque profile; selecting a larger model must still be justified by casing loads, foundation geometry, ground resistance and site logistics.
For technical assessment, provide the pile diameter, design depth, geological report, casing details, proposed excavation tools and jobsite access conditions.
Explore the SEMW Casing Rotator Series for related models and technical options.
Frequently Asked Questions
Q1. What drilling diameter range does the CRD3205H cover?
The brochure specifies Ø2000–3200 mm. Final equipment selection should also consider drilling depth, casing details and ground conditions.
Q2. What is the CRD3205H rotary torque rating?
Its rotary torque settings are 9080 / 5368 / 3034 kN·m at 0.6 / 1.0 / 1.8 rpm, respectively. The instantaneous peak rotary torque is 10593 kN·m.
Q3. How is the CRD3205H hydraulic power pack configured?
The supplied specifications list a Cummins QSX15-500 plus DCEC QSC8.3-C260 engine combination with power-pack weights of 10 + 8 t. Wired and wireless remote-control options are listed.
Q4. What is the published casing extraction capability?
The casing pull-out force is 7237 kN, with an instantaneous peak of 8370 kN. Actual extraction requirements depend on ground friction and casing configuration.
Q5. What information should be prepared before requesting a CRD3205H quotation?
Provide pile dimensions, drilling depth, geological data, casing specifications, lifting and excavation equipment, access limitations and the intended construction method.
