Deep hole drilling machine
ZK2103YG / ZK2104YG Deep Hole Drilling Machine
The ZK21××YG series gundrills coaxial, eccentric and indexed holes in shaft work. Holes of 4 mm to 40 mm at depth ratios up to 150:1, on workpieces to 4 m long, held in a hydraulic chuck with a hydraulic self-centring steady rest.
Features
- Gundrilling, with the chips carried out along the flute. One pass reaches the accuracy and surface finish that drilling, reaming and boring would otherwise be needed for.
- The workpiece is held by a headstock with a hydraulic chuck, a hydraulic steady rest and an adjustable auxiliary support. The headstock traverses; the steady rest and auxiliary support are mounted together and traverse as one, each set by a digital scale and read on a dial indicator.
- When the workpiece length changes, the headstock is repositioned along the bed by a motor driving a trapezoidal screw, with rapid and slow travel in both directions from the push-button station at the head.
- A servo spindle motor drives the headstock spindle, which indexes to any angle and locks when eccentric holes are being drilled.
- Headstock and drill rod head both run on double rectangular sliding guideways, which is what lets the machine carry heavy workpieces and take heavy cuts.
- Bed and housings are cast in high-grade iron.
- Tool feed is servo motor and ballscrew, tool rotation is on the spindle motor, and both are infinitely variable.
- A dedicated coolant system supplies high-pressure, high-flow filtered cutting oil, with chip conveyor, drum filter and oil temperature control.
- Full enclosure keeps the cutting oil off the floor and still leaves tool changing accessible.
- Pressure, coolant level and temperature, tool and travel protections are built into the control.
Specification
Published catalogue figures. Options and non-standard travels are quoted separately.
| Item | Unit | ZK2103YG | ZK2104YG |
|---|---|---|---|
| Working range | |||
| Drilling diameter | mm | Φ4-Φ35 | Φ4-Φ40 |
| Max. drilling depth | mm | 2000 | 1600 |
| Workpiece diameter | mm | 50-270 | 60-400 |
| Max. workpiece length | mm | 2700 | 4000 |
| Drilling eccentricity | mm | 150 | |
| Max. depth-to-diameter ratio | — | 150:1 | |
| Z axis | |||
| Rapid traverse | m/min | 3 | |
| Feed rate | mm/min | 0-1000 | |
| Motor torque | N·m | 15 | |
| Drill rod head | |||
| Speed range | r/min | 500-6000 | |
| Main motor power | kW | 7.5 | 9.5 |
| Headstock | |||
| Max. speed | r/min | 150 | |
| Main motor power | kW | 3.7 | 5.5 |
| Cross travel | mm | 150 | |
| Hydraulic chuck size | mm | 315 | 400 |
| Hydraulic steady rest | |||
| Clamping diameter | mm | 50-270 | 60-400 |
| Centring accuracy | mm | 0.05 | |
| Cross travel | mm | 150 | |
| Coolant system | |||
| Pressure range | MPa | 1-10 | |
| Flow range | L/min | 6-140 | |
| Filtration | μm | 40 | |
| Installed | |||
| Total power, approx. | kW | 38 | 42 |
| Machine weight, approx. | t | 11 | 16 |
| Floor area, approx. | m | 9.5×3.5 | 11×3.5 |
Request A Quote
Get A Tailored Quote For The ZK2103YG / ZK2104YG
Send The Largest Part Dimensions, The Material And The Tightest Tolerance. Our Engineers Confirm Whether The ZK2103YG / ZK2104YG Fits And Reply With A Detailed Quotation.
- +86 15162661999
- info@hankray.com
-
Room 1804-2, No. 33 Xinggui Street, Suzhou Industrial Park, Suzhou, Jiangsu, China
Model FAQs
Questions Engineers Ask About The ZK2103YG / ZK2104YG
Which parts suit the ZK2103YG / ZK2104YG best?
The catalogued work list for the ZK2103YG / ZK2104YG covers coal mining machinery, hydraulic cylinders, piston rods, shaft parts, eccentric and indexed holes. If your part sits outside that list it is not necessarily wrong for the machine — send the drawing, the material and the tolerance and we will place it honestly, on this machine or another.
What does the ZK2103YG / ZK2104YG’s Φ4-Φ35 / Φ4-Φ40 mm capacity actually mean?
Capacity figures are quoted in steel — Φ4-Φ35 / Φ4-Φ40 mm on the ZK2103YG / ZK2104YG. Keep a working margin over your biggest regular hole rather than running the spindle at its limit all day: a machine bought at the limit wears its accuracy off first. In cast iron the same spindle works easier; in stainless, harder.
Why does the ZK2103YG / ZK2104YG’s speed range matter more than its top speed?
The ZK2103YG / ZK2104YG runs 500-6000 r/min. 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 separates the ZK2103YG / ZK2104YG from the ZK5140B in this group?
Both sit in the deep hole 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 ZK2103YG / ZK2104YG 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 ZK2103YG / ZK2104YG 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.
