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中文CRD2005H Casing Rotator
Product Overview
The SEMW CRD2005H is a fully hydraulic casing rotator for foundation projects requiring drilling diameters from Ø1000 to Ø2000 mm. With three rotary torque-speed settings, hydraulic casing advancement and strong extraction capability, it supports fully cased foundation operations where casing resistance and bore stability are important considerations.
Technical Specifications
Specifications below are taken from the CRD2005H page of SEMW's CRD Series brochure. Peak values are instantaneous ratings, not continuous operating values.
Base Machine
| Drilling diameter | Ø1000–2000 mm |
|---|---|
| Rotary torque | 2965 / 1752 / 990 kN·m; instantaneous peak 3391 kN·m |
| Rotary speed | 1.0 / 1.7 / 2.9 rpm |
| Maximum casing downward force | 600 kN |
| Casing pull-out force | 3760 kN; instantaneous peak 4300 kN |
| Pressure-pulling stroke | 750 mm |
| Base machine weight | 46 t (with transition frame, without reducer blocks) |
Hydraulic Power Pack
| Engine options | Cummins QSM11-335 / Volvo TAD1152VE |
|---|---|
| Engine power — Cummins | 272 kW / 1800 rpm (250 kW / 2100 rpm rated) |
| Engine power — Volvo | 285 kW / 1700 rpm (271 kW / 2000 rpm rated) |
| Fuel consumption — Cummins | 216 g/kWh (at maximum power rate) |
| Fuel consumption — Volvo | 205 g/kWh (at maximum power rate) |
| Power pack weight | 8 t |
| Control | Wired / wireless remote control |
What Matters in Ø2000 mm Casing Construction?
As casing diameter increases, machine selection must account for more than nominal bore size. The CRD2005H's published torque, extraction force and stroke offer a basis for evaluating the required equipment arrangement.
Casing Resistance
Assess casing diameter, penetration depth and expected soil-to-casing friction before selecting the operating torque and speed.
Excavation & Handling
Coordinate the casing rotator with a suitable crane and excavation tools for material removal inside the steel casing.
Bore Stability
Fully cased drilling can help support the bore in loose or mixed ground, subject to the actual ground profile and design method.
Working Platform
Check equipment positioning, lifting space, ground-bearing capacity and the 46 t base machine weight during site planning.
Full Casing Construction & Typical Uses
The casing rotator applies hydraulic torque and vertical force to advance a steel casing. Soil and underground material are excavated from within the casing using compatible supporting tools. Pile completion and casing extraction follow the approved project method.
Potential project applications: cast-in-place foundation piles, bridge and transportation foundations, deep urban foundation works and selected underground-obstruction removal operations. The suitability of any application depends on site conditions and engineering assessment.
When to Consider the CRD2005H
The CRD2005H is a candidate where the specified drilling diameter falls within Ø1000–2000 mm and the project calls for its published torque, pressing and extraction capacity. It should not be selected on diameter alone.
Frequently Asked Questions
What drilling diameter does the CRD2005H cover?
The brochure specifies a drilling diameter range of Ø1000–2000 mm.
What are the CRD2005H rotary torque and speed settings?
The listed rotary torque settings are 2965 / 1752 / 990 kN·m with corresponding rotary speeds of 1.0 / 1.7 / 2.9 rpm. Instantaneous peak torque is 3391 kN·m.
How does the CRD2005H differ from the CRD1805H?
The CRD2005H extends the upper drilling diameter to 2000 mm (versus 1800 mm for CRD1805H) and has a 750 mm pressure-pulling stroke (versus 500 mm). Other parameters and site requirements also need to be compared.
What information is required for equipment selection?
Contractors should provide pile diameter and depth, ground conditions, casing specifications and supporting equipment requirements for technical assessment.
