Product description

The Norlok Letter Lok 4000 is a floor-mounted clinching machine manufactured for the channel letter industry, from Norlok Technology Inc. of Brantford, Ontario. It fastens channel letter returns and faces with a Clinchlok joint — the upper tooling squeezes two plies between a punch and die, locking them together with no drilling, no screws and no pop rivets, no heat or adhesives, no fumes, and little or no damage to painted or finished surfaces.

For sign shops and channel-letter fabricators, the Letter Lok 4000 replaces drilling, screws and pop rivets with a clean, fast, UL recognized clinch — no fasteners to buy, stock or install, and no holes to drill in finished letters. It reduces channel letter fastening costs while producing a consistent, high-quality joint on every letter.

Specifications

• Throat: 25 in.; clinches 2 in. to 10 in. deep letters
• Large table: 30 in. x 60 in.
• Cycle rate: 60–80 cycles per minute
• UL recognized clinch for channel letters — tooling components MP70001, MP70002 and MP70010 are standard in all Letter Lok 4000 machines
• Simple tool adjustment, little or no set-up time; air powered
• SPR (self-piercing rivet) tooling option for aluminum composite / polycarbonate

Replacement parts and tooling

Contact Northern Machinery Sales for replacement punches, dies and tooling for the Letter Lok family:

• Die inserts: #30 insert (yellow, maximum total 0.075 in. aluminum) — part MP70000; #40 insert (blue, maximum total 0.125 in. aluminum) — part MP70001; #50 insert (red, maximum total 0.200 in. aluminum) — part MP70002
• Die blade set (includes 3 die blades and one elastomer) — part MP70003A
• Punch — part MP70010

Contact Northern Machinery Sales
Call 508-581-9922 — Arthur Clark ext 101, Tony Demaio ext 102, Ron Mason ext 103. Call or text 508-365-8395. Email aclark@northernmachinerysales.net.