SCM Class M 3 Layout Drawing (PDF)SCM Class M 3 Multi-Blade Gang Rip Saw
The M 3 is the most powerful machine on our SCM lineup, and it does a job none of the others do: it carries a pack of saw blades on one shaft and rips a board into several pieces in a single pass. The North American build runs on 460 V and comes equipped with SCM’s top motor, 60 HP. The sections below cover the blade shaft, the feed, and the guarding, which is the part SCM leads with.
The Blade Shaft
Blades run at 4,200 rpm on a 70 mm sleeve, and the shaft takes a pack up to 300 mm wide using blades from 200 to 350 mm in diameter. Maximum blade count depends on the kerf and spacers you choose for a given job.
SCM’s shaft design has a tapered fit where the sleeve meets the base of the spindle, which keeps blades sharper for longer and lets the saw put more stock through per hour. The configuration we quote also includes an extra shaft sleeve with rings and flanges at 95 mm (roughly 3 3/4 inches), rated for 300 mm blades and stock up to 100 mm thick.
- Blade diameter: 200 to 350 mm
- Max blade pack width: 300 mm
- Blade bore: 70 mm
- Sleeve bore: 50 mm
- Blade speed: 4,200 rpm
- Distance from base to the first right-hand blade: 200 mm
The Feed
Stock travels on a heavy linked belt driven directly through the links themselves. No chain sits in between the links, and SCM credits that arrangement with keeping the feed straight. A separate 2.4 HP motor drives it, and the rate is continuously adjustable from 6 to 48 m/min rather than stepped.
At the infeed, the fence has a lever that locks itself in place and is easy to operate with one hand.
Guarding
This is what SCM leads with on the M 3, and the claim is specific rather than general: the machine carries four anti-kickback finger barriers — three above and one below — with a chip deflector screen between the three upper barriers.
Specifications
| Type | Multi-blade gang rip saw |
|---|---|
| Main motor | 60 HP (44 kW), three-phase |
| Electrical | 460 V, 60 Hz, 83 A; 40 kVA minimum installed power |
| Blade diameter | 200 to 350 mm (7.9 to 13.8 in) |
| Max width of blade pack | 300 mm (11.8 in) |
| Blade bore | 70 mm |
| Blade arbor diameter | 50 mm (2 in) |
| Blade speed | 4,200 rpm |
| Extra shaft sleeve | 95 mm (3 3/4 in) with rings and flanges, for 300 mm blades and stock to 100 mm |
| Feed belt motor | 2.4 HP |
| Feed speed | 6 to 48 m/min, continuously adjustable |
| Minimum workpiece length | 390 mm (15.4 in) |
| Worktable | 1,530 × 950 mm (60.2 × 37.4 in) |
| Worktable height | 750 mm (29.5 in) |
| Anti-kickback | 4 finger barriers (3 upper, 1 lower) with chip deflector screen |
| Extraction outlets | 200 mm at the blades; 120 mm at the feed track |
| Extraction required | 3,850 m3/h at 25 m/s |
| Compressed air required | 60 Nl per cycle |
| Shipping weight | 4,629 lb (crated) |
| Product line | SCM Class |
Contact 360 Degree Machinery
360 Degree Machinery is an authorized SCM dealer. Call 630-229-6705 or request a quote online. Tell us the blade pack you intend to run and the power available at the machine, since this one needs 460 V three-phase rather than the 220 V most of the range uses. Installation fees may apply.