DD 250-CA Core drill
Advanced heavy-duty diamond drilling tool with optional Cut Assist autofeed unit for coring very small to large diameter holes of 12-500 mm (1/2" - 20”)
- Diameter range: 15/32 - 19-11/16 in
- Base material: Concrete, Reinforced concrete, Asphalt
- Operation mode: Rig-based drilling system
Customers also searched for diamond core drill, core drill, cut assist or concrete coring.
Technical Data
Diameter range
15/32 - 19-11/16 in
Base material
Concrete, Reinforced concrete, Asphalt
Operation mode
Rig-based drilling system
Number of gears
4
No load RPM
gear 1: 240 rpm; gear 2: 580 rpm; gear 3: 1160 rpm; gear 4: 2220 rpm
Weight according EPTA-Procedure 01/2003 without battery
34 lb
Weight of complete system
81 lb
Dimensions (LxWxH)
24.8 x 7.5 x 8.5 in
A-weighted emission sound pressure level
93 dB (A) 1
Tri. vibr. value for drilling into concrete (wet) with diamond core A (ah,DD)
2.5 m/s²
Tri. vibr. value for drilling into concrete (wet) (ah,DD) - Corebit A
HCL/HCS
- According to the applicable product standard (see the Operating Instruction for more details)
Documents
Features & Applications
Features
- Air-cooled, heavy-duty drive unit – core drill built for high performance with a sturdy design and convenient controls
- Extremely wide diameter range – four-speed gearing for use with most core bit sizes
- Hole-starting function – low-vibration, low-speed mode to start drilling with large-sized core bits
- Hilti Cut Assist – equips the core drill for fully automated drilling. Starts when surface is detected, then continuously optimizes speed and water flow, even when cutting through rebar. Cut Assist means much higher productivity and more time for other tasks (optional DD AF-CA H autofeed unit required)
- Real-time information display – digital spirit level, gear selector, power control function, detailed usage statistics and easy-to-understand service messages
Applications
- Core drilling penetrations for ducts, pipes and cables
- Core drilling blind holes for setting anchors or post-installed rebar
- Stitch drilling for breaches
- Assisted drilling of large quantities of holes with DD AF-CA H autofeed unit
- Assisted drilling of deep holes and extremely large diameters with DD AF-CA H autofeed unit
For approval or certificate information, please see individual items.
Services
Hilti Tool Service
- Product warranty against parts and manufacturing irregularities for 20 years
- Service is free of charge up to 2 years, including wear & tear, pick-up and delivery
- 1 or free, in and out of the repair center the same day or repair is free of charge
Fleet Management
- Monthly usage fee covering all tool, service and repair costs helping to ensure absolute cost control and back-office efficiency.
- High-performing tools and latest technology help to increase jobsite productivity.
- Temporary tools for peak times and special applications help to reduce investments.
- Theft coverage helps to reduce financial risk and unexpected expenses.
Related Products
A single unit for the supply of cooling water as well as the collection and filtration of wastewater from diamond drilling systems
Drill stand for heavy duty Hilti coring machines (see technical data for tool compatibility)
Consulting & Support
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