Manual Knee Mills
Kent USA Manual Knee Mills are affordable, versatile, and easy to operate. Our manual knee mills are ideal for prototype, tool room and R&D work, as well as part of training programs and everyday machining. You will be able to perform practically any milling operation on a knee mill. This includes angled cuts and drilling and the cutting and drilling of long workpieces. They are also great for fixtures, rework, and one-of-a-kind components. Our KTM-3VKF, KTM-3VSF, KTM-4VKF-E, KTM-5VKF-E and KTM-5AVKF models have spindle motors with AC-Frequency drive.
Industry Leading Knee Mills
At IMTS 1992, Kent USA showcased the first AC-Frequency drive head on a knee mill to the general machine tool public. This caught our competitors by surprise and generated a lot of interest—well actually more from our competitors than shop users at the time. We are the first to put in a digital RPM display for easy and precise spindle speed adjustment. Also, we are the first to put in an analog spindle load meter. Today, we lead this field with the highest performance AC-Frequency drive head on the market with 0-4500 rpm in under 3 seconds. We use the latest generation of flux-vector inverter drives made in the USA—for performance that is second to none. An optional high-speed head with 6000 rpm spindle is also available—again, a first in its class. Some lead, others follow.
Factory installed CNC knee mills are also available for higher precision and higher volume production.
Specifications
| Specification | KTM-3S | KTM-3VS | KTM-3VSF | KTM-3VK |
| Table Size | 228 mm x 1066 mm | 228 mm x 1244mm (opt. 228 mm x 1066 mm) | 228 mm x 1244mm (opt. 228 mm x 1066 mm) | 254 mm x 1270 mm (opt. 254 mm x 1371 mm) |
| Table Travel (X-Axis) | 711 mm | 889 mm | 889 mm | 889 mm |
| Saddle Travel (Y-Axis) | 304 mm | 304 mm | 304 mm | 387 mm |
| Knee Travel (Z-Axis) | 381 mm | 381 mm | 381 mm | 381 mm |
| Quill Travel | 127 mm | 127 mm | 127 mm | 127 mm |
| Ram Travel | 368 mm | 368 mm | 368 mm | 558 mm |
| Spindle Motor | 2.23 kw | 2.23 kw | 2.23 kw | 2.23 kw |
| Spindle Speed | 60–500–4200 rpm (2 range) | 60–500–4200 rpm (standard variable speed model) | 50–550–4500 rpm (2-range, hi/lo) | 60–500–4200 rpm |
| Spindle Taper | r-8 | r-8 (nmtb-30 or quick change spindle optional) | r-8 | r-8 |
| Quill Diameter | 86 mm | 86 mm | 86 mm | 86 mm |
| Quill Feed Rate | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev |
| Drilling Capacity (Manual / Power) | 19mm / 9.40 mm diameter | 19mm / 9.40 mm diameter | 19mm / 9.40 mm diameter | 19mm / 9.40 mm diameter |
| Boring Capacity | 152 mm | 152 mm | 152 mm | 152 mm |
| Milling Capacity | 50.75 mm/min | 50.75 mm/min | 50.75 mm/min | 50.75 mm/min |
| Maximum Work Load (Center) | 340 kg | 386 kg | 340 kg | 386 kg |
| Spindle Center to Column | 127 mm – 495 mm | 127 mm – 495 mm | 127 mm – 685 mm | 70 mm – 438 mm |
| Net Weight | 997 kg | 1133 kg | 1156 kg | 1360 kg |
| Gross Weight | 1043 kg | 1270 kg | 1202 kg | 1406 kg |
| Shipping Dimensions | 1829 mm x 1829 mm | 1829 mm x 1829 mm | 1829 mm x 1829 mm | 1930 mm x 1930 mm x 2235 mm |
| Power Requirements | 220 volts, 3 phase, 60 hz, 10 amp (optional 440v, requires 5 amp) | 220 volts, 3 phase, 60 hz, 10 amp (optional 440v, requires 5 amp) | 220v, 3 phase, 60 hz, 10 amp (optional 440v power requires 5a) but can also accept 220v, 1-phase power (15a) without a phase converter, ideal for customers with only 1-phase power | 220 volts, 3 phase, 60 hz, 10 amp (optional 440v, requires 5 amp) |
| Specification | KTM-3VKF | KTM-4VKF-E | KTM-5VKF-E | KTM-5AVKF |
| Table Size | 254 mm x 1270 mm (opt. 254 mm x 1371 mm) | 304 mm x 1270 mm | 304 mm x 1270 mm | 330 mm x 1497 mm |
| Table Travel (X-Axis) | 889 mm | 838 mm | 838 mm | 1000 mm |
| Saddle Travel (Y-Axis) | 387 mm | 457 mm | 457 mm | 508 mm |
| Knee Travel (Z-Axis) | 381 mm | 457 mm | 457 mm | 508 mm |
| Quill Travel | 127 mm | 140 mm | 140 mm | 140 mm |
| Ram Travel | 558 mm | 558 mm | 679 mm | 533 mm |
| Spindle Motor | 2.23 kw | 2.23 kw | 3.72 kw | 3.72 kw |
| Spindle Speed | 50–550–4500 rpm (2-range, hi/lo) | 50–550–4500 rpm (2-range, hi/lo) | 60–500–4200 rpm (standard variable speed model) | 70-4500 rpm |
| Spindle Taper | r-8 | r-8 | ntmb-40 | ntmb-40 |
| Quill Diameter | 86 mm | 86 mm | 106 mm | 106 mm |
| Quill Feed Rate | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev | 0.0381 mm / 0.0762 mm / 0.1524 mm mmrev | 0.04318 mm / 0.08128 mm 0.13716 mm mm/rev | 0.04318 mm / 0.08128 mm 0.13716 mm mm /rev |
| Drilling Capacity (Manual / Power) | 19mm / 9.40 mm diameter | 19mm / 9.40 mm diameter | 32 mm / 16 mm diameter | 38 mm |
| Boring Capacity | 152 mm | 152 mm | 203 mm | 203 mm |
| Milling Capacity | 50.75 mm/min | 50.75 mm/min | 63.45 mm/min | 76.2 mm/min |
| Maximum Work Load (Center) | 386 kg | 386 kg | 386 kg | 545 kg |
| Spindle Center to Column | 127 mm – 685 mm | 127 mm – 685 mm | 133 mm – 812 mm | 135 mm – 670 mm |
| Net Weight | 1406 kg | 1542 kg | 1678 kg | 2744 kg |
| Gross Weight | 1451 kg | 1632 kg | 1723 kg | 2857 kg |
| Shipping Dimensions | 1930 mm x 1930 mm x 2235 mm | 1829 mm x 1829 mm | 1829 mm x 1829 mm | 2159 mm x 2032 mm |
| Power Requirements | 220 volts, 3 phase, 60 hz, 10 amp (optional 440v, requires 5 amp) | 220 volts, 3 phase, 60 hz, 10 amp (optional 440v, requires 5 amp) | 220 volts, 3 phase, 60 hz, 17 amp (optional 440v, requires 8.5 amp)can run on single phase power | 220 volts, 3 phase, 60 hz, 25 amp (optional 440v, requires 12.5 amp) |
Video
Accessories
Standard Accessories
- Digital Readout System
- Table (X-Axis) Power Feed
- Saddle (Y-Axis) Power Feed
- Knee (Z-Axis) Power Feed
- Air Power Drawbar
- Flood Coolant System
- Chip Pan
- Riser Block
- Angle-Lock Vise
- Rustlick Coolant
