Digital radial drilling machine
KRD4012EVS Digital Radial Drilling Machine
A 40 mm radial drill with the gear train replaced by frequency conversion and servo control. The spindle reaches 1250 mm from the column, and the Z axis carries a glass scale so drilling depth is read rather than estimated.
Features
- Spindle speed and feed run on frequency conversion and servo control, which simplifies the mechanical structure and takes out a share of the faults that come with it.
- Machining parameters are shown on a digital readout and can be pre-set before the cut.
- A glass scale on the Z axis reads drilling depth back to the control.
- The spindle motor switches automatically between high and low gear to hold cutting speed; spindle and feed motors both carry overload protection.
- The upper guideway surface is inlaid with German 1.2842 alloy steel, which extends rail life and keeps headstock clamping repeatable.
- The arm is surface quenched for rigidity and strength.
- Arm and inner and outer column clamp electrically rather than mechanically, which is stable in service and cuts the failure rate.
- A digital integrated electrical panel replaces the loose-component cabinet.
Specification
Published catalogue figures for the series; the columns for this model are highlighted. Options and non-standard travels are quoted separately.
| Item | Unit | KRD4012EVS | KRD5016EVS |
|---|---|---|---|
| Capacity | |||
| Max. drilling diameter, 45# steel | mm | Φ40 | Φ50 |
| Spindle axis to column, max. | mm | 1250 | 1615 |
| Spindle axis to column, min. | mm | 350 | 365 |
| Spindle nose to base working surface, max. | mm | 1255 | 1220 |
| Spindle nose to base working surface, min. | mm | 395 | 370 |
| Horizontal movement of the spindle | mm | 900 | 1250 |
| Lifting distance of the arm | mm | 580 | 550 |
| Spindle | |||
| Spindle travel | mm | 280 | 300 |
| Spindle taper | Morse | 4# | 5# |
| Range of spindle speed | r/min | 20-1600 | |
| Steps of spindle speed | — | 16 | |
| Feed range of spindle | mm/r | 0.05-3 | |
| Steps of spindle feed | — | 16 | |
| Main motor power | kW | 4.0 | 5.5 |
| Weight and dimensions | |||
| Machine weight | kg | 2400 | 3000 |
| Boundary dimensions, L × W × H | mm | 2050×870×2750 | 2730×1200×2850 |
Request A Quote
Get A Tailored Quote For The KRD4012EVS
Send The Largest Part Dimensions, The Material And The Tightest Tolerance. Our Engineers Confirm Whether The KRD4012EVS Fits And Reply With A Detailed Quotation.
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- info@hankray.com
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Room 1804-2, No. 33 Xinggui Street, Suzhou Industrial Park, Suzhou, Jiangsu, China
Model FAQs
Questions Engineers Ask About The KRD4012EVS
Will the KRD4012EVS reach across my widest part without re-clamping?
The KRD4012EVS’s lifting distance of the arm runs 580 / 550 mm. The whole point of the machine is that the spindle comes to the hole, so measure your widest workpiece with margin and check it against that figure — chasing holes by re-clamping a heavy weldment defeats the machine.
What speeds and taper does the KRD4012EVS run?
The KRD4012EVS runs 20-1600 r/min on a 4# / 5# spindle taper. Big holes in tough material live at the bottom of the range where torque works; small holes want the top. A machine that covers both ends handles the whole job list instead of half of it.
What should I look at inside the KRD4012EVS beyond the spec table?
Two build points matter most on this machine: spindle speed and feed run on frequency conversion and servo control, which simplifies the mechanical structure and takes out a share of the faults that come with it; and machining parameters are shown on a digital readout and can be pre-set before the cut. Structure decides how a machine ages — the specification table tells you what it does new, the build tells you what it does in year five.
KRD4012EVS or KRD5016EVS — which fits my work?
Both sit in the digital radial drilling machine group, so the decision is capacity and duty, not kind: put your largest part dimensions, material and yearly quantity against each specification table and one of the two will run out of a figure first. Send the drawing and we will name which of the two fits — including the case where the smaller machine does the job.
How soon can the KRD4012EVS ship, and what covers it afterwards?
Standard configurations generally ship within 30 to 60 days of a confirmed order, with the date written into the contract. The KRD4012EVS then carries a 12-month warranty on main components, handled by the plant that built it, with lifetime technical support and spare parts identified by part number at handover.
