2025 MONTALIFT Mobile Tower Crane for Sale

MONTARENT MONTALIFT M21 4WDS

Self-Erecting Mobile Tower Crane | 21 tm Class | 4-Wheel Drive + 4-Wheel Steer

A super flexible machine that stays rock-solid in its class. The Montalift M21 4WDS combines true jobsite mobility with fast, simple self-erection. Thanks to powerful 4-wheel drive and 4-wheel steering, it can unload and drive itself directly into position, then be set up and working within minutes. Its ability to relocate around the site gives crews multiple lift points without needing a second crane.

This 21 ton-meter crane can also be configured as a 10 ton-meter crane, eliminating the hoisting license requirement in the Netherlands. Standard LED jib lighting improves visibility for early mornings or late shifts, and the radio controller display shows height, load, and radius clearly at all times.

Key Advantages

• Self-propelled after unloading

• Drives on rough terrain with 4WD and 4-wheel steer

• One-person erection and dismantling

• Minimal physical effort required

• Ready to work in approx. 10 minutes

• Radio control with display (height, load, distance)

• Can operate in 10 tm configuration (no hoisting license NL)

• Allowed to drive with erected crane

• LED lighting in jib for illuminated work area

Crane Specifications (Self-Erecting Tower Crane)

• Class: 21 tm (licensed)

• Jib length: 26 m

• Lifting height: 18.7 m standard / up to 25.9 m with raised jib

• Max capacity: 1,800 kg

• Motions: Hoist, trolley, and slew via inverter control

• Tower/Jib: Octagonal galvanized tower + compact galvanized lattice jib

• Safety systems: Maximum load and load-moment protection

• Erection/operation: Approx. 10 minutes via radio control with display

• Counterweight: Removable steel, 2 x 4,150 kg

• Slewing radius: 2.13 m

• Other: Automatic lubrication, selector switch for jib configurations

Undercarriage & Mobility (Self-Propelled 4WDS)

• Electro-mechanical 4-wheel drive with 2 speeds

• 4-wheel steering for tight maneuvering

• Can be driven fully erected

• Heavy-duty axles with hub reduction

• Tires: 8 x 9.00 x 20 terrain-profile tires

• Outriggers: 4 extendable hydraulic outriggers

• Outrigger base: 4.0 m x 4.0 m

• Driving/steering via cable control unit with pushbuttons

• Power supply: 400 V – 3 x 25 A

  • Optional 20 kVA soundproof genset on undercarriage

Transport Dimensions

• Length x Width x Height: 12.1 m x 2.8 m x 3.1 m

• Total weight: 21.4 t

• Compact footprint for easy transport and fast deployment