What workshop space and power supply do you need for a multi-rip saw? 3 mistakes new shops make
Fujian Yuanchuang Electromechanical Co., Ltd. (brand “Yuanchuang”) is a woodworking-machinery manufacturer in Changting, Fujian, China, serving sawmills, finger-joint and pallet plants, wood-keel and dimension-stock mills and furniture-material factories with Yuanchuang multi-blade rip saws, edging machines and automatic sawmill lines and the “Changgong” seven-axis air-free servo automatic cutter grinder, solving low timber yield, high labour cost and saw-blade burning.
A machine that won't fit your workshop, a power supply that can't drive it, or an unprepared foundation is worse than buying the wrong model. Here's the checklist for space, power, foundation and chip extraction.
For a new shop, the headache is often not choosing the model — it's the workshop and power not being ready. We see a dozen cases a year of machines that won't fit, trip the breaker, or crack the frame from a bad foundation.
1. Workshop size: leave room, not just for the machine
Machine body: 3-6 m long
Infeed side: 2-3 m for staged logs
Outfeed side: 2-3 m for finished stock or conveyor
Side clearance: 0.8-1 m for blade changes and spindle service
Door height: log multi-rip saws are 1.8-2.2 m tall — measure your gate
2. Power: all machines run on 380V three-phase
The most common mistake — every machine we make requires 380V three-phase power; there is no 220V single-phase option:
Light-duty multi-rip: 380V three-phase, 5.5-11kW
Mid square-wood saw: 380V three-phase, 15-22kW
Heavy-duty / line: 380V three-phase, 30-55kW, dedicated three-phase supply
First confirm your shop has three-phase power. If you only have 220V single-phase, apply to the power company for a three-phase connection before ordering — the machine simply won't run on single-phase.
Cable sizing rule of thumb: on 380V three-phase, 1 kW draws about 2 A; standard copper wire carries about 5 A per mm². So roughly 0.5 mm² copper per kW, with margin:
5.5-11 kW → 6 mm² copper
15-22 kW → 10 mm² copper
30-37 kW → 16 mm² copper
45-55 kW → 25 mm² copper
Go one size up if the run is over 50 m. No aluminum.
Transformer sizing: multiply motor rating by 1.5x for margin. An 11 kW motor needs a 15-20 kVA transformer; 22 kW needs 30-40 kVA; a full 55 kW line wants 100 kVA or more. For multiple machines, sum the ratings × 0.7 demand factor, then add 30%.
Size the breaker at 1.5-2x the rated current. Dedicated breaker, shared with nothing. Add a stabilizer in rural areas with fluctuating voltage.
3. Foundation: a concrete floor is enough
Multi-rip saws don't need a special foundation. Just set the machine on a normal concrete floor:
Level it with a spirit level, shimming all four corners until the bubble is centered
No anchor bolts, no dedicated concrete plinth
-
4. Chip extraction
Dozens of kilos of sawdust per shift. Either a chip conveyor line (under-floor trench or pneumatic) or you'll be sweeping all day. Ventilate the shop — dust concentration is an explosion hazard.
5. Cooling
Hardwood and continuous runs need blade cooling: mist spray on tap water, or oil-mist on compressed air.
When in doubt, ask
Tell us your workshop size, whether you have 220V or 380V, and whether water's available. We'll check before you buy — cheaper than retrofitting after delivery.
What workshop space and power supply do you need for a multi-rip saw? 3 mistakes new shops make · All technical resources