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NN300

Factory Solutions · Unattended smart production lines

Built for frame production lines: continuous auto-feed keeps the machine running while labor costs drop up to 60%. Ideal for high-volume factory operation.

Underpinner Machine NN300

Four corners nailed simultaneously, 300% higher output

15 frames/minJoining Speed
±0.1mmJoining Accuracy
1-4 nailsNails per Corner
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Technical specifications
Total Power3kw
Power Supply220V
Air Pressure6-8MPa
Weight800kg
Compare models in this scenario
DimensionNN300NN400 Active Clamping Pneumatic Underpinner V-NailerNN700 PRO Touchscreen CNC Frame Joiner Machine (Seamless)
Use caseHighly automated line factories requiring unattended corner joiningFlexible studios and mid-size shops with frequent profile and material changesHigh-end galleries and premium frame shops demanding zero-gap miter joints
Throughput~15 frames/minHundreds to thousands of frames/day1,000–3,000 frames/day
Automation levelFully automatic (PLC)CNC programmed (semi-automatic)Touchscreen CNC with coordinated plate clamping
Recommended daily output5,000–8,000 frames/day500–2,000 frames/day1,000–3,000 frames/day
FAQ

What is the biggest difference from a conventional CNC underpinner?

The NN300 is a line-grade fully automatic machine: all four corners are nailed at once, with auto push-off to the outfeed conveyor—roughly 300% higher throughput.

Do I need to stop the machine to reload moulding?

No—the operator can add stock while the machine runs. A single load holds 10+ sticks.

What are the air pressure and lubrication requirements?

Requires 6–8 MPa working pressure. A built-in capacitive oil pump supports automatic lubrication and routine maintenance.

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