Kent CNC CRL-1640
Image: kentusa.com, Kent CNC
Key Specifications
Max Spindle
Spindle Taper
Spindle Power
swing over bed
swing over cross slide
distance between centers
How much does the Kent CNC CRL-1640 cost?
Price estimate
We do not have a price for the Kent CNC CRL-1640 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Kent CNC CRL-1640 is a lathe that runs in both manual and CNC modes, with a 16 in (406 mm) swing over the bed, 35 in (889 mm) between centers and a 7.5 hp (5.6 kW) spindle that reaches 3,000 rpm. The standard control is the FANUC 0i-Mate TF, with the Fagor 8055i listed as an option.
What sets it apart in Kent CNC's 16 in range is the spindle drive. Speed runs from 25 to 3,000 rpm in 2 steps through a 2-speed semi-automatic gearbox, so the low step is there for large-diameter work near the full swing and the high step for small diameters and finishing. The CSM-1640, on the same 7.5 hp (5.6 kW) rating, stops at 2,000 rpm. The CRL-1640 gives up a little bore for that: 2.066 in (52 mm) through the spindle against 2-1/4 in (57 mm) on the CSM-1640. The nose is Camlock D1-6, with ASA A1-6 as an option, and the spindle taper is M.T. #6.
Read the swing figures together. The 16 in (406 mm) applies over the bed only. Over the cross slide the limit is 9.05 in (230 mm), and that is the figure that governs a shaft long enough to pass over the slide. Z travel is 33 in (838 mm) and X travel 8.5 in (216 mm). The Z ballscrew is 1.259 in with a 10 mm pitch and the X ballscrew 0.787 in with a 5 mm pitch, driven by 1.13 hp (0.8 kW) and 0.6 hp (0.4 kW) servo motors. Rapids are 295 in/min (7.5 m/min) in Z and 196.8 in/min (5 m/min) in X, which suits one-off and short-run work more than cycle-time-driven production.
The tailstock has an M.T. #4 taper and a 2.283 in (58 mm) quill with 5.5 in (140 mm) of travel. An automatic 4-position electric turret is listed as an option, so check which tool post the quoted machine carries. The machine weighs 4,730 lb (2,146 kg) and ships at 5,830 lb (2,644 kg) in a 125 x 79.7 x 86.6 in (3,175 x 2,024 x 2,200 mm) package.
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Bed | 16 in (406 mm) |
| Swing Over Cross Slide | 9.05 in (230 mm) |
| Distance Between Centers | 35 in (889 mm) |
| Bed Width | 10.23 in (260 mm) |
| X Axis Travel | 8.5 in (216 mm) |
| Z Axis Travel | 33 in (838 mm) |
| Spindle Nose | Camlock D1-6 (Opt. ASA A1-6) |
| Spindle Bore | 2.066 in (52 mm) |
| Spindle Taper | M.T. #6 |
| Spindle Speed Range | 25-3,000 rpm (2 steps) |
| Max Spindle Speed | 3,000 rpm |
| Spindle Motor Power | 7.5 hp (5.6 kW) |
| Z Axis Ballscrew | 1.259 in, 10 mm pitch |
| X Axis Ballscrew | 0.787 in, 5 mm pitch |
| Rapid Traverse Z | 295 in/min (7.5 m/min) |
| Rapid Traverse X | 196.8 in/min (5 m/min) |
| Servo Motor Z | 1.13 hp (0.8 kW) |
| Servo Motor X | 0.6 hp (0.4 kW) |
| Tailstock Quill Diameter | 2.283 in (58 mm) |
| Tailstock Quill Travel | 5.5 in (140 mm) |
| Tailstock Taper | M.T. #4 |
| CNC Control | FANUC 0i-Mate TF (opt. Fagor 8055i) |
| Operating Modes | Manual and CNC |
| Gearbox | 2-speed semi-automatic gearbox |
| Tool Post | Optional automatic 4-position electric turret |
| Machine Weight | 4,730 lb (2,146 kg) |
| Shipping Weight | 5,830 lb (2,644 kg) |
| Packing Dimensions | 125 x 79.7 x 86.6 in (3,175 x 2,024 x 2,200 mm) |
Specifications sourced from kentusa.com — verified 2026-10-03
Strengths & Limitations
Strengths
- 25-3,000 rpm in 2 steps from a 7.5 hp (5.6 kW) spindle, against the 2,000 rpm maximum of the CSM-1640
- Manual and CNC operating modes on one machine, so simple jobs can be turned without writing a program
- 2-speed semi-automatic gearbox gives a low step for large diameters and a high step for small ones
- 35 in (889 mm) between centers with 33 in (838 mm) of Z travel and an M.T. #4 tailstock with 5.5 in (140 mm) of quill travel
- At 4,730 lb (2,146 kg) it is heavier than the 3,520 lb (1,597 kg) CSM-1640 for the same 16 in (406 mm) swing
Limitations
- Swing over the cross slide is 9.05 in (230 mm), well under the 16 in (406 mm) swing over the bed
- The automatic 4-position electric turret is an option, not part of the base machine
- Spindle bore is 2.066 in (52 mm), smaller than the 2-1/4 in (57 mm) of the CSM-1640 and the 3 in (76 mm) of the KLS-1840N
- X rapid is 196.8 in/min (5 m/min) and Z rapid 295 in/min (7.5 m/min), slow for repetitive production cycles
Best For
Frequently Asked Questions
01
Both swing 16 in (406 mm) and carry a 7.5 hp (5.6 kW) spindle with a Camlock D1-6 nose. The CRL-1640 runs to 3,000 rpm, weighs 4,730 lb (2,146 kg) and uses the FANUC 0i-Mate TF control. The CSM-1640 stops at 2,000 rpm, weighs 3,520 lb (1,597 kg), uses the Acu-Rite TurnPwr control and has a larger 2-1/4 in (57 mm) spindle bore against 2.066 in (52 mm) here.
02
Yes. Kent CNC lists its operating modes as manual and CNC. The standard control is the FANUC 0i-Mate TF, with the Fagor 8055i available as an option, and the spindle is shifted between its 2 steps by a 2-speed semi-automatic gearbox.
03
Swing over the bed is 16 in (406 mm) and swing over the cross slide is 9.05 in (230 mm). Distance between centers is 35 in (889 mm), with 33 in (838 mm) of Z travel and 8.5 in (216 mm) of X travel. Bar stock passing through the headstock is limited by the 2.066 in (52 mm) spindle bore.
04
Not as standard. The table lists an automatic 4-position electric turret as an option. Anyone planning unattended multi-tool cycles should confirm that the turret is on the quotation before ordering.
05
The machine weighs 4,730 lb (2,146 kg). Shipping weight is 5,830 lb (2,644 kg) and the packed size is 125 x 79.7 x 86.6 in (3,175 x 2,024 x 2,200 mm), so plan the forklift or rigging and the door opening around the packed figures.
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