Highlights
The QMB420G Four-Side Moulder is a four-spindle machine designed for planing and sizing large solid wood beams and square timber up to 200 × 200 mm. It combines a high-strength cast-iron structure, independent spindle motors, chainless universal-shaft feeding and variable-frequency speed control for stable processing of structural timber, wooden house components and other large solid wood products.
- Processing width: 20–200 mm
- Processing height: 20–200 mm
- Feeding speed: 8–36 m/min
- Spindle configuration: 4 spindles
- Spindle speed: 6,800 r/min
- Spindle diameter: Ø40 mm
- Machine weight: 3,650 kg
Images
Features
- The QMB420G can process solid wood sections up to 200 × 200 mm, making it suitable for structural beams, large square timber and wooden house production.
- The high-strength cast-iron machine structure provides good rigidity and stability for continuous four-sided machining.
- Chainless universal-shaft transmission provides smooth and powerful feeding, while frequency control allows the feeding speed to be adjusted from 8–36 m/min.
- High-precision spindles operate at 6,800 r/min, with independent motors and high-rigidity construction for stable cutting and improved surface quality.
- Hard-chrome-treated working surfaces, centralized lubrication, short-material feeding support and a fully enclosed safety cover improve durability, feeding stability and operation safety.
Technical data
| Specifications | Unit | QMB420G | QMB520AT | QMB620AT | QMB620RL |
|---|---|---|---|---|---|
| Processing width | mm | 20–200 | 20–200 | 20–200 | 20–200 |
| Processing height | mm | 20–200 | 8–125 | 8–125 | 8–125 |
| Feeding speed | m/min | 8–36 | 8–33 | 8–33 | 8–33 |
| Spindle diameter | mm | Ø40 | Ø40 | Ø40 | Ø40 |
| Spindle speed | r/min | 6,800 | 6,800 | 6,800 | 6,800 |
| First bottom spindle – flat cutter | mm | Ø125 | Ø125 | Ø125 | Ø125 |
| First bottom spindle – trimming cutter | mm | Ø152 | Ø152 | Ø152 | Ø152 |
| Back bottom spindle cutter | mm | / | Ø108–Ø200 | Ø108–Ø200 | / |
| Other spindle cutter diameter | mm | Ø108–Ø180 | Ø108–Ø180 | Ø108–Ø180 | Ø108–Ø180 |
| Feed motor | kW | 5.5 | 4 | 4 | 7.5 |
| First bottom spindle motor | kW | 7.5 | 5.5 | 5.5 | 5.5 |
| First right spindle motor | kW | 7.5 | 5.5 | 5.5 | 7.5 |
| First left spindle motor | kW | 7.5 | 5.5 | 5.5 | 7.5 |
| Second right spindle motor | kW | / | / | / | 5.5 |
| Second left spindle motor | kW | 1* | / | / | 7.5 |
| First upper spindle motor | kW | 11 | 7.5 | 7.5 | 7.5 |
| Second upper spindle motor | kW | / | / | 5.5 | / |
| Second bottom spindle motor | kW | / | 5.5 | 5.5 | / |
| Lifting motor | kW | 0.75 | 0.75 | 0.75 | 0.75 |
| Overall dimensions | cm | 340 × 186 × 180 | 350 × 180 × 175 | 400 × 10 × 175* | 410 × 180 × 175 |
| Machine weight | kg | 3,650 | 3,600 | 4,400 | 4,650 |
The table above follows the manufacturer’s published QMB20 Regular Series specifications. The source currently lists “1 kW” for the QMB420G second-left-spindle row and “400 × 10 × 175 cm” for the QMB620AT dimensions; both appear unusual, so I have preserved them rather than guessing a correction.
Optional configurations include 5.5–11 kW spindle motors, Ø50 mm spindles, 8,000 r/min spindle speed and saw-blade installation on the final bottom spindle.
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