U-400 Semi-Automatic Underpinner

The U-400 has been designed for ease of operation and is particularly well suited for joining large frames up to 5 ½” (140mm) in width.

Supplied with a tilting floor stand, the machine can be operated from the front or back and has a single stage pneumatic foot pedal that activates the Horizontal Clamp, securing moulding during the joining process.

After the framer sets the two position stops for measuring the max distance between strokes, a dual function hand lever is then used to position and actuate both the Vertical Mould Holding Clamp and the V-Nail driver inserting V-Nails anywhere along the pre-set stroke distance.

A key operating feature for the U-400 allows the operator to quickly change V-Nail mm size using an interchangeable metal magazine channel. Operator easily accesses the interchangeable channel from the rear of the machine to load the appropriate V-Nail size. This feature eliminates the added purchased cost of plastic nail cartridges.

Former Model Reference - VN144

CONTACT

Frame Joining Capabilities

Moulding Width (min to max)	Moulding Height (min to max)	Max Distance Between V-Nails (stroke)
¼” up to 5 ½” (6-140 mm)	¼” up to 3 ¼” (6-80 mm)	7 7/8” (200 mm)
Pre-set V-Nail Position Stops	V-Nail Sizes	V-Nail Channel Capacity
Multiple	5, 7,10,12,15 mm (SW-HW-HDF)	220 V-Nails/channel

Purchase Package

	U-400 Purchase Package
(1)	“Multi-Sized” Nail Head
(1)	7mm Channel Magazine
(1)	10mm Channel Magazine
(1)	12mm Channel Magazine
(1)	Single Vertical Positive Placement Clamp
(1)	Single Metal Pressure Plate
(1)	Magnetic Base for Clamp Assembly
(1)	Blue Rubber Pad (SW)
(1)	Yellow Rubber Pad (MW)
(1)	Black Rubber Pad (HW)
(1)	Round Pressure Pad - Felt
(1)	Front Horizontal Clamp
(1)	Adjustable Fence - 2 Knobs
(1)	4mm Allen Wrench
(1)	5mm Allen Wrench
(1)	6mm Allen Wrench
(1)	Magnetic V-Nail Pick-up Tool
(4)	Machine base levelers
(1)	Fence template 4-6-8 side
(1)	Floor Stand
(4)	Machine base levelers
(1)	Machine Manual

Accessories & Replacement Items

P/N	Item Description
04-069	Multi-Sized Nail Head
04-037	Extension Wings Kit
04-043	Channel Magazine - 5mm
04-042	Channel Magazine - 7mm
04-041	Channel Magazine - 10mm
04-040	Channel Magazine - 12mm
04-039	Channel Magazine – 15mm
04-020	Single Metal Pressure Plate
04-026	Blue Replacement Rubber Pad (SW)
04-025	Yellow Replacement Rubber Pad (MW)
04-024	Black Replacement Rubber Pad (HW)
04-167	Magnetic Base for Clamp Assembly
04-059	Round Felt Pad, Small, 6/PK
41-221	Single Vertical Positive Clamp Kit