Fitzmill L1A Hammer Milling Enclosure

Fitzmill L1A Hammer Milling Enclosure designed to provide personnel protection down to a respiratory exposure concentration of 10-100 micrograms powder per cubic meter of air (ug/m3). Features polypropylene superstructure with base (work surface) coated in black phenolic resin to preserve stability of all pertinent equipment and resultant data.

Removable sliding sash allows for easy ingress / egress of equipment and optimal product discharge and working height. Hinged door allows access to enclosure interior when necessary; removable sliding sash offers two (2) height configurations. FS2079 Double Safe Waste Chute facilitates easy load – out of waste product and other pertinent materials; this component is mounted on a removable panel, which allows interchangeability between it and the panel that can be installed on the opposite side (left or right). 316-grade stainless steel airfoils allow laminar airflow across the workspace and attenuation of hazard exposure.

Included electronically-actuated stainless steel table(*) allows the user to adjust the working height of the enclosure to meet their specific needs; table includes locking casters.

(*) stainless steel table complies with guidelines within the Americans with Disabilities Act of 1990 (ADA)

Additional features include:

  • 1.5” diameter rubber membrane iris ports allow for ingress egress of equipment cords and cables
  • Switch – actuated LED light provides optimal viewing across the workspace
  • Right-side mounting panel allows user to mount the Fitzmill L1A onto the right side of the enclosure; the mill is placed on a Flow Sciences cart (sold separately), cart is rolled to the right side of enclosure, and the sieve – end of the equipment is slipped through a rubber membrane. All components work together to retain containment with only the mill – end inside; additionally, this complex offers increased workspace area and portability of the Fitzmill L1A
    • Mounting panel is interchangeable between left and right sides of enclosure [with waste chute panel]


External Width: 47.75” [1175mm]
External Depth: 30.00” [762mm]
Internal Height: 34.44” [875mm]







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  • Is this similar to a TaskMatch enclosure or Standard enclosure? Enter the Enclosure ID or TaskMatch link here.
  • What is being done inside of the enclosure? What type of material (powder, liquid, gas, nuisance odor) is being worked with? How does the material enter and exit the enclosure system? etc...
  • What type of filtration is required? Single HEPA, Dual HEPA, Carbon, House Exhaust, etc... What is the required OEL (Occupational Exposure Limit) for the process, or any other details about containment goals? What is the quantity of powder or liquid, task duration, composition of powder, etc...?
  • What equipment is being worked with? What is the equipment model, size, scope, function, and any other information that will affect the design of the enclosure, including movement, heat output, etc...? *State the specific equipment make and model if available*
  • Are there any details on the facility that could affect the design of the enclosure including ceiling height, install door width, installation path, docks, available CFM, etc...? Any special shipping instructions such as required disassembly, flat packing, etc...?
  • When are you looking to have this unit installed and ready for use? Are there any other details about the project that should be considered? Is this part of a construction or renovation project?
  • Do you need a table or cabinet and if so, do you require any special features such as shelf, extension, equipment support, etc.? Would you prefer 304 or 316 SS or a powder coated mild steel? What working height would you like? Do you need it to be stationary or movable? Lift (adjustable height) or fixed height?
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