Hofmann Monty 3550 Two-Speed Tire Changer


SKU: HOFM3550EM110 Category:


The monty 3550em with patented EasyMont Pro Pneumatic Bead Assist is equipped to handle wheel diamters up to 30". These high-performance tilt-tower tire changers are ideal for handling the largest high-performance wheels as well as passenger car and light truck wheels of the future.

The monty 3550em Two-Speed tire changer with patented EasyMont Pro Pneumatic Bead Assist is equipped to handle wheel diameters up to 30". The monty 3550 series is specifically designed to change low-profile, high-performance and run-flat tires, maximizing a shop's versatility. The advantage of 14 RPM allows the technician faster turnaround. The pneumatically-controlled mount/demount head eases operator effort while still allowing for manual guidance and movement. The EasyMont Pro holds the bead into the drop center, making one-operator tire changes possible on low-profile, high-performance and run-flat tires. Now available in a new two-speed configuration.

Accommodates Large Wheel & Tire Assemblies

Allowing for a tire diameter of 47" and an
outer-wheel daimeter of 26" on the monty 3550 (30" on monty 3550em), the
monty 3550 series can handle wheel and tire assemblies found on cars
and light trucks.

Dual Wheel Clamping Cylinders

Dual pneumatic clamping cylinders control all four clamping jaws, eliminating damage to wheels due to slippage.

Four-Jaw Clamping Chuck

Self-centering and clamps wheels with either 26" inner or 24" outer diameter.

Powerful Two-Position Bead Breaker

6,000 lbs. of power
at the bead shovel and a range of 17" wide. The two-stage pneumatic
cylinder provides precise power and can be toggled with the foot pedal
as needed. Both the stiffest and the softest sidewalls are a snap. No
damage to the tires while loosening the beads!

Pneumatically-Controlled Mount/Demount Head

Push-button controlled mount/demount head
pneumatically lowers and locks into position, automatically indexing
away from the wheel to prevent contact and damage to the wheel and tire

Protect The Most Delicate Wheels

All metal parts have plastic protection providing non-metal-to-metal contact when changing delicate wheels.

EasyMont Pro Pneumatic Bead Assist

EasyMont Pro features a three-piece design with a
Top Roller, Pressing Foot, and Lifting Disc. Each piece provides a
specialized function that assists a single operator in
mounting/demounting low-profile and high-performance tires.

EasyMont Pro Pneumatic Bead Assist

  • Assists operator with bead lubrication, wheel clamping, lower
    bead lifting, re-loosens beads, and allows easy one-operator mounting of
    the stiff upper bead.
  • EAA0329G35B - Standard with monty 3550em (M3550EM110), Optional with monty 3550 (M3550110).
  • Top Roller:
    • Demounting - Presses down on the tire sidewall, provides
      clearance for easy positioning of the mount/demount head, upper bead
      lubrication, and easy insertion of the demount tire lever.
    • Mounting - The roller retains the bead under the nose of the
      mounting head. Works in conjunction with the Pressing Foot to keep the
      tire bead below the wheel drop center as the tire rotates 360° during
      the mounting process.
  • Pressing Foot:
    • Tire Clamping - Presses the wheel in the center hole which allows the lower bead to clear the wheels rim for easy clamping.
    • Tire Mounting - Presses the upper tire sidewall into the drop
      center and holds it in place during the 360° rotation required for
      mounting the upper bead is complete. Allows one-technician operation for
      mounting stiff sidewall, run-flat and high-performance tires.
  • Lifting Disc: Loosens lower beads that often re-seat. To
    remove the upper bead, the lower bead must be free to move vertically
    during demounting. Provides an "extra hand" to lift and hold wide tires
    to facilitate insertion of the demount lever to remove the lower bead.
  • For better cosmetic protection of expensive tires and wheels,
    an optional adjustable bead breaking disc can be fitted to the EasyMont
    Pro. This disc allows for breaking the tire beads using 360° tire
    rotation while the disc gently presses the tire bead dynamically, thus
    preserving tire and wheel.

Quick Wheel Protection Change-Over

Protective parts can be changed quickly from
plastic to metal. Even the mount/demount head can be changed over from
metal to plastic in a matter of seconds.

Overall Wheel Clamping Diameter
12" - 28"

Inner-Wheel Clamping Diameter
14" - 28"

Outer-Wheel Clamping Diameter
12" - 26"

Bead Breaker Range (Position 1)
2.5" - 12"

Bead Breaker Range (Position 2)
6" - 17"

Bead Loosening Power
6,000 lbs.

Maximum Wheel Width

Maximum Outer Tire Diameter


Work Area Dimensions (DxWxH)


Air Requirements
100 to 175 PSI @ 5 CFM

Shipping Weight
975 lbs. (monty 3550em) 870 lbs. (monty 3550)

Power Requirements
120V, 1Ph, 60HZ

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