
NN900 Foot-Pedal Underpinner
NN900 mechanical foot-pedal underpinner — no electricity or air. 110×85 mm capacity, 7–15 mm V-nails, quiet dust-free joining. XKY OEM — request specs & quote.
Underpinner in Framing Machine: Underpinners drive V-nails into moulding joints at precise angles — choose pneumatic models for shop throughput or CNC plate-clamping units for mixed MDF and coated profiles.
XKY framing machines cover the full industrial workflow — from stick cutting and quad-corner joining to back-panel finishing and automated production lines. Every model is CE-certified, built in Yiwu since 2004, and engineered as a performance alternative to European OEM equipment.

NN900 mechanical foot-pedal underpinner — no electricity or air. 110×85 mm capacity, 7–15 mm V-nails, quiet dust-free joining. XKY OEM — request specs & quote.

NN100 desktop pneumatic underpinner for starter framing shops. 110×115 mm capacity, 7–15 mm V-nails, 31 kg bench unit. XKY OEM — request specs & quote.

Heavy-duty Aluminium Corner Crimping Machine (MM200). Designed for high-force corner combining of aluminium windows, doors, and solar frames.

The MM100 is a pneumatic frame assembly machine with quad-directional clamping. Ideal for gluing and joining wooden picture frames without nails.

The NN700 PRO is our top-tier CNC frame joiner. Patented seamless corner pressing technology for the highest quality picture frame assembly.

NN600 CNC Underpinner offers advanced plate clamping technology. Ensure zero-gap joining for photo frames with this heavy-duty V-nailer machine.

NN500 is a pneumatic underpinner with CNC touchscreen control. Ideal for joining solid wood, MDF, and foam frames with precision V-nailing.

Upgrade to the N400 Active Clamping Underpinner. Features smart pressure adjustment and multi-material V-nailer compatibility for perfect corners.