Sharp Industries 20" x 87" Bed Type Vertical/Horizontal Milling Machine KMA-3H
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This model has both vertical and horizontal heads. Bed type vertical milling machines are ideal for milling large work piece or heavy cutting on hard metals. The quill is fixed so it can withstand strong lateral forces. For this model, the entire vertical head moves up to 28” that enables deep drilling and boring operations. The large spindle with #50 taper can remove large amount of metals in one pass. The horizontal head with 7.5 HP motor and #50 taper spindle driven by AC servo motor on ballscrew performs horizontal milling operations with high accuracy. This arrangement allows the performing of different type of milling operations on one set up, thus maintain accuracy and increase productivity.
- 20” x 87” table, 24” x 59” travel
- Vertical head travel 28”, fixed quill
- NT #50 taper spindle, 17.5 HP motor
- The Horizontal head has NT#50 spindle taper,7.5 HP motor. The head is driven by AC servo motor on precision ball screw for precise and easy operation.
- Hardened and ground box ways
- Fully ribbed castings on column, table and saddle to make it a rigid structure
- Double nut backlash eliminator
- Eye-level lever control for vertical head rapid traverse
Specifications and Manual
| Specification | Inch | Metric |
|---|---|---|
| Capacity & Travels | ||
| Table Size | 19.68″ × 86.62″ | 499.87 × 2200.14 mm |
| T‑slots (No. × W × Pitch) | 5 × 0.75″ × 3.56″ | 5 × 19.05 × 90.42 mm |
| X Longitudinal Travel | 59″ (79″ opt.) | 1498 mm (2006 mm opt.) |
| Y Cross Travel | 23.6″ | 599 mm |
| Vertical Head Travel | 27.5″ | 698 mm |
| Horizontal Head Travel | 25.5″ (up/down) | 647 mm |
| Spindle Center to Column | 21.62″ | 549.14 mm |
| Spindle Nose to Table | 4–31.5 in./min | 101.6–800.1 mm/min |
| Dist. Between Vert. & Horiz. Spindle | 21.5″ | 546 mm |
| Table Feeds & Rapids | ||
| Longitudinal Feeds (Var.) | 1.12 – 39.37 ipm | 26 – 1000 mm/min |
| Longitudinal Rapids | 129 7/8 ipm | 3300 mm/min |
| Cross Feeds (Var.) | 1.12 – 39.37 ipm | 26 – 1000 mm/min |
| Cross Rapids | 129 7/8 ipm | 3300 mm/min |
| Vertical Head | ||
| Spindle Nose Taper | NST #50 | — |
| Spindle Speeds (12) | 45 – 1500 rpm | — |
| Vertical Head Feeds | 0.002 – 0.008 in/rev | 0.05 – 0.2 mm/rev |
| Horizontal Head | ||
| Spindle Nose Taper | NST #50 | — |
| Spindle Speed (12) | 40 – 1450 rpm | — |
| Horizontal Head Travels | 25.5″ (up/down) | 647 mm |
| Vertical Rapids | 150 ipm | 3800 mm/min |
| Motors & Coolant | ||
| Vertical Spindle | 20 HP | 14.91 kW |
| Horizontal Spindle | 7.5 HP | 5.59 kW |
| Table Feed & Rapid | 4.7 HP | 3.5 kW |
| Vertical Rapid | 1.14 HP | 0.85 kW |
| Coolant System | 0.125 HP | 0.093 kW |
| General | ||
| Floor Area (W × D × H) | 14.58 × 8.33 × 9.41 ft | 4.44 × 2.53 × 2.86 m |
| Approx. Weight | 19,140 lbs | 8700 kg |
| Power Consumption (220 V) | 60 amps | — |
| Power Consumption (440 V) | 30 amps | — |
Standard Equipment
- Coolant system
- Auto lubrication system
- Draw-in bolt (1 pc)
- Tool box
- Wired 220V or 440V
Optional Add-Ons
Call for Price
- Power drawbar w/ foot pedal control
- 6 in. “KURT” vise with swivel base D688
- Halogen work light
- Outboard support of table to increase longitudinal travel