DCP1005H Low Clearance Full Casing Rotary Drilling Rig
Product Overview
The SEMW DCP1005H Low Clearance Full Casing Rotary Drilling Rig is developed for pile foundation work in confined spaces, including tunnels, bridge culverts and restricted-access construction areas. Its Ø500–1000 mm drilling range is paired with a compact crawler-mounted working unit and a separate electric hydraulic power station.
Unlike conventional tall casing rotators, the DCP1005H emphasizes equipment access, repositioning and drilling within limited headroom. SEMW describes applications in working spaces around 4 m wide and 4.8 m high, with a stated maximum pile depth of 40 m; feasibility still depends on the complete site arrangement and approved construction plan.
Built for Restricted Access
Designed for tunnels, culverts and sites where equipment height and available working width limit conventional piling machinery.
Three Torque-Speed Settings
Delivers 845 / 525 / 290 kN·m rotary torque with corresponding speeds of 1.25 / 2.3 / 4.15 rpm for different operating conditions.
Crawler-Mounted System
Working unit and power station use crawler travelling systems to assist positioning and movement around suitable site surfaces.
Technical Specifications
The following figures are taken from the DCP1005H-specific SEMW brochure drawings. The instantaneous peak values are not continuous operating ratings.
Base Machine Parameters
| Parameter | DCP1005H Specification |
|---|---|
| Drilling diameter | Ø500–1000 mm |
| Rotary torque | 845 / 525 / 290 kN·m |
| Instantaneous peak rotary torque | 1050 kN·m |
| Rotary speed | 4.15 / 2.3 / 1.25 rpm |
| Maximum casing downward force | 300 kN |
| Casing pull-out force | 2411 kN |
| Instantaneous peak pull-out force | 2733 kN |
| Pressure-pulling stroke | 450 mm |
| Base machine weight | 31 t |
Electric Hydraulic Power Pack
| Parameter | Specification |
|---|---|
| Motor models | YE2-315S-4 / YE2-280M-4 / YM-132M-4 |
| Total electric motor power | 207.5 kW (110 + 90 + 7.5 kW) |
| Power pack weight | 10 t |
| Control mode | Wired and wireless remote control |
Low-Clearance Construction & Site Planning
Space limitations determine how low-clearance drilling is planned. The DCP1005H uses a hydraulic casing rotator working unit and a separately powered station, connected during operation to support casing rotation and vertical movement. Excavation and casing handling must be coordinated with suitable auxiliary equipment.
Applications & Equipment Selection
Typical evaluation scenarios: tunnel pile foundations, bridge culvert works, low-headroom foundation construction and restricted-access infrastructure sites requiring Ø500–1000 mm fully cased drilling.
When selecting the DCP1005H, contractors should supply the available headroom and width, pile layout, required depth, ground investigation, casing details, site access and electrical power conditions. Unlike the larger conventional CRD models, the primary selection consideration here is whether the complete drilling operation can be performed within the available space.
Frequently Asked Questions
Q1. What drilling diameter can the DCP1005H handle?
The SEMW brochure specifies a drilling diameter range of Ø500–1000 mm.
Q2. Why is the DCP1005H intended for low-clearance sites?
Its crawler-mounted working unit and separated electric power station are designed for foundation drilling where available height and access restrict larger equipment. The complete working arrangement must be checked for each project.
Q3. What is the casing pull-out force?
The rated casing pull-out force shown in the brochure is 2411 kN, with an instantaneous peak of 2733 kN.
Q4. Does the hydraulic power pack use a diesel engine?
The DCP1005H brochure specifies an electric motor power pack with total installed motor power of 207.5 kW (110 + 90 + 7.5 kW).
Q5. What information should be provided for technical selection?
Provide working width and height, pile diameter and depth, geological information, casing requirements, the available electrical supply and any access or lifting limitations.
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