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NN Series Underpinners
Professional Frame Joining Solutions
? Flagship Model

ST-NN700 PRO
Touchscreen + Plate Clamping Technology
- ? Touchscreen Control: Visual programming, instant setup & data storage.
- ? Plate Clamping Stability: Side/Base grip eliminates frame shifting.
- ? Seam-Free Tech: Patented design for gallery-quality gap-free corners.
? Get NN700 Price
? Best Seller

ST-NN600
Plate Clamping System (Button Control)
- ? Plate Clamping: Superior stability (same mechanism as NN700).
- ? Dual-Gear System: Perfect for wider or complex profiles.
- ? Smart CNC: 9-stage programming for multi-position nailing.
? Get NN600 Price
? Smart Touch

ST-NN500 PRO
Touchscreen + Active Clamping
- ? Touchscreen Interface: Easy visual input for nail positions.
- ? Active Downward Clamping: Ideal for joining warped wood profiles.
- ? High Speed: 5-nail stacking & 9-row synchronized nailing.
ST-NN400
Standard Active Clamping Model
- ? Cost-Effective Driver: High performance, budget-friendly.
- ? Active Clamping: Reliable downward pressure for general framing.
- ? Multi-Material Ready: Works on foam, gypsum, and solid wood.
? Get NN400 Price
? Mass Production Line

SL-NN300 Auto
Quad-Angle 4-Corner Simultaneous Nailing
- ? 400% Speed Boost: Nails all 4 corners simultaneously.
- ? Fully Automatic: Auto-feeding hopper loads 10+ strips at once.
- ? Labor Saving: Significantly reduces manual handling and labor costs.

