NN400 PLC Active Compression Underpinner
The NN400 is a PLC-controlled active compression underpinner for standard wood frames, stable product ranges, and customers with limited changeovers. High-rigidity V-nails insert upward while the compression head applies downward force to stabilize joints. Recommended for solid wood, MDF, and PS mouldings; use caution with extremely brittle materials.
- PLC control with active corner compression improves joint stability and reduces manual clamping.
- Rigid V-nail driving on the proven mechanical platform shared with NN500–NN700.
- Purpose-built for standard wood frame production with stable ranges and limited changeovers.
- Standard wood frames
- Stable product ranges
- Customers with limited changeovers
- Solid wood, MDF, and PS moulding production
- High-volume production requiring automatic four-corner joining
- Frequent changeovers that require touchscreen recipe storage
- Extremely brittle mouldings that need specialized edge protection
Architecture: Rigid V-Nail Platform with PLC Active Compression
- Frame corner is positioned on the underpinner table.
- PLC-controlled active compression engages the corner.
- High-rigidity V-nails insert upward.
- Compression head applies downward force to stabilize the joint.
A public NN400 video is not available yet. Ask sales for the current machine demonstration video.
Get quote- Standard model lead time
- Factory dispatch typically in 5-15 days
- Freight options
- Air, sea, or land freight; the buyer may specify the method
- Freight quotation
- Nominate a forwarder or ask XKY to obtain freight-forwarder quotes
- Common Incoterms
- EXW, FOB, DDP
- Installation & operator training
- Remote installation and operator video training
- Online consultation
- Two years of free online technical consultation
- Wear parts backup
- One backup set of wear parts is supplied with the machine
- Controlled materials
- Installation manuals and replacement videos are provided only to verified customers
| Working Voltage | 110–220V / 50–60Hz |
| Air Pressure | 6–8 kg/cm² |
| Control System | PLC |
| Active Compression | Supported |
| V-Nail Sizes | 5 / 7 / 10 / 12 / 15 mm |
| Maximum Profile Width | 130 mm |
| Maximum Profile Height | 100 mm |
| Machine Dimensions | 850 × 850 × 1300 mm |
| Machine Weight | 120 kg |
| Packing Dimensions | 725 × 740 × 1170 mm |
| Dimension | NN400 | Touchscreen Active Compression Underpinner | Automatic Quad-Corner Framing Machine | MDF Protection Underpinner |
|---|---|---|---|---|
| Use case | Standard wood frames with stable product ranges | Mixed batches with frequent specification changeovers | Standardized high-volume automated joining | MDF-intensive production requiring edge protection |
| Throughput | Operator-paced corner-by-corner joining | Operator-paced corner-by-corner joining | Approx. 15 frames/min reference throughput | Operator-paced with MDF edge preservation |
| Automation level | PLC active compression | Touchscreen HMI with recipe storage | Fully automatic quad-corner system | PLC with MDF protection mechanism |
| Recommended daily output | Standard wood frame production with limited changeovers | Studios and growing factories with product variety | Standardized high-volume joining | MDF specialist production |
- NN300 vs NN400 joining automation
- Pneumatic vs CNC underpinner
- Underpinner vs frame joiner guide
- NN500 touchscreen underpinner
- Frame assembly engineering guide
- Starter workshop solutions
- NN underpinner series
- Request quote for starter solutions
- Request a quote for this model
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- Compare with Touchscreen Active Compression Underpinner
What is Active Compression?
Active Compression applies downward force during V-nail insertion, improving joint stability, corner contact, and reducing gaps.
When should I choose the NN400 over the NN500?
Choose the NN400 for standard wood frames with stable product ranges and limited changeovers. Choose the NN500 when you need touchscreen HMI and recipe storage for frequent specification changes.
Can the NN400 process MDF?
Yes—NN400 and NN500 can process MDF. NN600 and NN700 are recommended when MDF edge protection during joining is a priority.
How is the NN400 different from the NN300?
They serve different production models. The NN300 is an automated high-volume quad-corner platform for standardized throughput. The NN400 is a flexible corner-by-corner underpinner for standard wood frame production.
What materials is the NN400 recommended for?
Solid wood, MDF, and PS mouldings. Use caution with extremely brittle materials.
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Need touchscreen recipes for frequent changeovers? Studio Solutions →
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