Daily
Drain the compressor tank, check pressure, check water traps and separators, and listen for leaks.
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Factory setup guideWoodworking Factory Setup Guide: Power, Dust Collection, Compressed Air and Layout
Even the best CNC router or edge bander underperforms on poor power, wet air or weak dust extraction. Get these four foundations right before installation and your machines deliver their rated accuracy and uptime from day one. Use this guide with the Caple process charts when planning a new or expanded factory.
The right order of readiness
Start with power, then the daily-hygiene utilities, then layout and flow.
- Power quality and earthing
- Dust collection
- Compressed air
- Factory layout and material flow
Power quality and earthing
Reliable machines begin with reliable power. The Caple golden rule: earthing first, transformer later. An isolation transformer creates a clean neutral and reduces electrical noise, but it does not improve earthing. The objective is not only to protect the machine; it is to protect production.
| Parameter | Recommended target |
|---|---|
| Earth resistance for CNC and servo machines | Below 1 to 2 Ω |
| Earth resistance for general industrial use | Below 5 Ω |
| Neutral-to-earth voltage | 0 to 2 V ideal, up to 5 V acceptable |
| Neutral-to-earth monitoring | Warning at 2 to 5 V, alarm above 5 V, trip above 8 to 10 V |
| Surge protection (SPD) | Type 1 + 2 at the main panel; Type 3 near sensitive electronics |
| MCB / MCCB | Correctly rated: neither under-rated nor over-rated |
Recommended protection sequence
- Main LT panel
- Dedicated earthing system
- Earth resistance and continuity check
- Correct MCB / MCCB
- Neutral-earth monitoring relay
- Type 1 + 2 SPD
- Servo stabiliser
- Isolation transformer
- Type 3 SPD
- CNC / PLC / servo machine
Machine tripping or giving random alarms? See Caple troubleshooting and check earth resistance and neutral-earth voltage first.
Dust collection
Dust is a cost. It affects health, machine life, finish quality, housekeeping, fire safety and productivity. Fine particles are generally more harmful because they stay airborne longer.
- No air leaks: leakage reduces suction and efficiency
- Maintain the correct air-to-cloth (bag) ratio
- Maintain minimum conveying velocity in every duct
- Monitor pressure drop across the filter
- Avoid immediate bends and sharp turns near the machine
- Add a cyclone before the filter for sawdust, chips and shavings
- Clean filters by shaking, bag collapse or reverse pulse jet
- Provide spark and fire protection
- Earth and bond the entire duct system
Larger ducts move higher volume at lower pressure and suit industrial machines; smaller hoses give higher pressure at lower volume and suit power tools. Browse dust collection and pollution-control systems.
Compressed air
Clean, dry air equals reliable machine performance. Both volume and pressure matter: volume is the total air used by all pneumatic users, and pressure is the minimum required by the most demanding device. Wet air washes out lubricant, sticks valves, damages seals and corrodes cylinders.
- Air compressor
- Receiver tank
- Water trap
- Moisture separator
- Filters
- Ring main pipeline
- FRL unit at the machine
Weekly
Clean filters, inspect drain points, check pressure stability and inspect the ring main and air quality.
Pipeline
Use a ring main, slope pipes towards drain points and size pipes correctly to avoid pressure loss.
Double-stage compressors are preferred where higher pressure is required. Browse air compressors, dryers, filters and pneumatics.
Popular standards to reference
Your electrical, safety and utility consultants will recognise these widely used standards. Ask them to design and test against the relevant ones.
| Standard | Area | Why it is useful |
|---|---|---|
| IS 3043 | Code of practice for earthing (India) | Design and testing of the factory earthing system |
| IEC 61643 series | Surge protective devices | Selecting and coordinating Type 1, 2 and 3 SPDs |
| ISO 8573-1 | Compressed air purity classes | Specifying how dry, clean and oil-free the air must be |
| NFPA 664 | Fire and explosion prevention in wood processing | Dust-collection, spark detection and housekeeping practice |
| ISO 45001 | Occupational health and safety management | A structured safety system for people and machines |
| ISO 14001 | Environmental management | Dust, waste, energy and emissions control |
| ISO 50001 | Energy management | Reducing energy per board through measurement and review |
Standards are listed for reference. Always confirm the current edition and local statutory requirements with a qualified engineer.
Factory layout and material flow
Design from raw-material receipt to finished-goods dispatch, not around machine positions alone. The output of one process becomes the input of the next.
- Receiving
- Storage
- Cutting
- Edge banding
- Drilling
- Assembly
- Finishing
- Packing
- Dispatch
Layout checklist
- Process flow is linear, with no U-turns or backtracking
- Material stays palletised and off the floor
- Controlled buffers of about 2 to 4 hours between critical processes
- Incoming, in-process and final QC gates
- Clear aisles with separate forklift and pedestrian lanes
- Correct working heights, lighting and ventilation
- Maintenance access around every machine
- Fire protection, spark arrestors, guarding and PPE
- 20 to 30% of floor area reserved for future expansion
Reduce lifting and walking with material-handling equipment such as scissor lifts, vacuum lifters, pallet trucks and roller conveyors.
Frequently asked questions
Should I install an isolation transformer for my CNC machine?
Fix earthing first. An isolation transformer gives a clean neutral and reduces noise, but it does not improve a poor earth. Target earth resistance below 1 to 2 Ω for CNC and servo machines.
Why does my dust collector lose suction?
Common causes are air leaks, clogged filters, too many bends, undersized ducts and heavy chips reaching the filter. Adding a cyclone before the filter helps with heavy loads.
How do I size an air compressor for woodworking machines?
Add the air consumption of all pneumatic users for volume, and use the highest minimum operating pressure among them for pressure. Both must be met.
How much space should I reserve for expansion?
Reserve 20 to 30% of floor area for future growth and automation.
Planning a new factory or a machine installation?
Share your floor plan and machine list. Caple will check power, dust, air and layout readiness and return a CAD layout with recommendations.