The MUNSON® Security Destructor is highly effective at destroying large quantities of materials associated with security or highly controlled manufacturing, proven by the fact that numerous United States Federal Reserve Banks (as well as many international banks) use this technology to destroy currency.
Typical security destruction applications include:
- Paper currency, food coupons, out of circulation currency (printed sheets as well as individual notes)
- Plastic cards (credit/ debit/ ATM/ phone/ membership/ etc) including smart cards
- CDs, DVDs, tapes, memory sticks and other computer media
- Circuit boards, chips, hard drives and other computer hardware
- Virtually any other hard or soft material from large sheets to small components
The Security Destructor accepts infeed ranging from sheets from 10 to 30 in. (254 to 762 mm) wide by unlimited lengths, to PCB components as small as 1/16 in. (1.52 mm). It outputs particles in relatively narrow size ranges, from 3 in. (76 mm) square down to 1/32 in. (.79 mm) on a batch or continuous basis, at rates from 1 to 1000 cu ft/h (.03 to 28 cu m/h).
Unlike conventional granulators containing a small number of angled rotor blades that slice materials into strips in scissor-like fashion, the Security Destructor is configured with cutter blades along its entire shaft, with no gaps between blades, making total contact with the product to be destroyed. As a result, the length as well as the width of the material is cut into uniform pieces (not strips) with minimum fines and little to no heat generation.
The blades are available in stainless steel, tool steel and tungsten carbide, and are available with replaceable cutter tips with retaining socket-head screws for rapid replacement.
The cutter has throat widths ranging from 10 to 30 in. (254 to 762 mm). Bed screen perforations range from 1/32 to 1 1/2 in. (0.79 to 38 mm) in diameter and up to 3 in. (76 mm) square, according to material characteristics and desired final particle size. The 11 in. (279 mm) diameter (rotor assembly) shaft rotates at 30 to 3600 RPM, according to desired output.
Material is fed through the top of an adjustable, double-baffled intake chute, via an independently powered, variable speed belt conveyor. Discharge is typically via pneumatic transition, but gravity, or independently powered belt or screw conveyor may be used if material is suitable.
A multiple V-belt drive motor is standard, and a direct-coupled drive and gear reducer optional.