Touchscreen Underpinner Machine NN500

NN500 Pneumatic Picture Frame Joiner Underpinner (Touchscreen)

SKU: NN500

Product Overview: ST-NN500 PRO

The ST-NN500 PRO combines heavy-duty construction with modern digital control. Featuring a responsive LCD touchscreen and a powerful pneumatic active clamping system, it delivers intelligent, high-speed CNC nailing for professional frame assembly.

Core Features: Smart Framing with NN500 PRO

  • Intelligent Touchscreen Control
    Upgraded from the standard NN400, the NN500 features a responsive LCD touchscreen. This allows operators to input nail positions visually, store frame data, and switch between profiles instantly without manual recalibration.
  • Active Clamping System (Downward Pressure)
    Features a powerful pneumatic cylinder that applies active downward pressure. This ensures the frame corner is held firmly against the table before nailing, eliminating gaps even on warped wood.
  • High-Speed CNC Nailing
    Driven by a nine-stage CNC system, it can perform 5-nail stacking and 9-row synchronized nailing in one pass. This flexibility handles complex moulding shapes with ease.
  • Multi-Material Versatility
    The smart pressure adjustment makes it suitable for joining solid wood, MDF, foam, and plaster molding strips without damaging delicate surfaces.

Technical Specifications

Specification Details
Model ST-NN500 PRO
Operation Type Touchscreen CNC + Pneumatic Active Clamping
Max Frame Width 130mm (13cm)
Max Frame Thickness 100mm (10cm)
V-Nail Compatibility 5mm, 7mm, 10mm, 12mm, 15mm
Air Pressure 6-8 kg/cm² (90-120 psi)
Joining Angles 90°, 120°, 135°
Packing Dimensions 800 × 700 × 1300 mm

Frequently Asked Questions (FAQ)

Q: What is the main upgrade of NN500 compared to NN400?
A: While both machines use the stable “Active Clamping” system, the NN500 adds a Touchscreen interface. This allows you to save frame settings and visualize the nailing process, whereas the NN400 relies on standard controls.
Q: Does it support stacking nails for tall frames?
A: Yes, the NN500 supports multi-layer stacking (up to 5 nails per position). This is essential for joining tall or heavy frames securely.
Q: Is the interface difficult to learn?
A: No, the CNC system is designed for “One-Button Start.” Most operators can master the touchscreen interface within 30 minutes.
Product Manual / Downloads
Special Tech Specs
Intelligent PLC Control:
Equipped with a user-friendly Visual Touchscreen Interface. This replaces manual knobs with digital precision, allowing operators to monitor nail counts, error diagnostics, and operation status in real-time.
Memory Storage System:
Features a “Recipe Storage” function. You can program and save the nailing positions for different frame profiles. When switching orders, simply select the preset profile, and the machine automatically adjusts logic, significantly reducing setup time for repeat orders.
Active Clamping Technology:
Inherits the “Three-Sided Active Clamping” module from the high-end series. It applies pressure from the top and sides simultaneously to lock the moulding firmly before nailing, ensuring a gap-free joint.
Multi-Point Nailing:
The CNC system controls the V-nail insertion points. You can set multiple nail positions along the joint (e.g., front, middle, back) for maximum corner strength on wide frames.
Hybrid Operation Modes:
Operators can switch between “Manual Mode” (for testing new frames) and “Auto Mode” (for mass production) directly from the screen.
Device Parameters
Parameter Value
Model NN500 (CNC Touchscreen)
Control System PLC Touchscreen
Max Moulding Width 120 mm (4 3/4″)
Max Moulding Height 80 mm (3 1/4″)
V-Nail Capacity 220 V-Nails
Stroke Length 145 mm (5 3/4″)
Clamping System Active 3-Sided Clamping
Air Pressure 0.6 – 0.8 Mpa
Power Supply 110V – 240V / 50-60Hz (Required for Screen)
Machine Weight 85 kg (187 lbs)
Dimensions 650 x 550 x 1200 mm
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Additional Details
Xinky Steel Framing — manufacturing facility
Xinky Framing
Quality Steel Framing
Since 2004
20+
Years in industry
50+
Countries served
ISO
Certified quality
24h
Response time