Trailer cranes

K21-30 TSR

Despite its low net weight of 3.5 t, the K21-30 TSR is an efficient all-rounder. Its tremendously strong fly jib hinge enables loads of up to 1,500 kg to be picked up, whilst it can lift a weight of 250 kg laterally 20 m away. Due to the single-axle operation, the trailer scores highly with great manoeuvrability, optimal weight distribution and more ground clearance. With the help of the self-drive mechanism, the K21-30 TSR can manoeuvre easily on the building site. Thanks to a retractable drawbar, its overall length can be reduced to 7 m, meaning that the crane can also be easily set up in inner-city areas.


Equipment

Mast system

  • extremely strong and weather-resistant aluminium special alloy with low net weight
  • no strength loss in the welding seam due to new stir welding process, joints are as strong as the solid material
  • typical Klaas hole pattern ensures smaller wind-exposed areas, low net weight and high dent resistance
H-support
  • fully hydraulic support in conjunction with the ASC support monitoring system enables infinitely variable support widths, also in the direction of the range of action
  • no fixed increments that restrict the operator
  • l-shaped support ensure best possible safety against overturning
  • support without underpinning possible thanks to long, vertical cylinder
Fly jib joint
  • higher loads lifted on integrated extensions thanks to newly designed fly jib joint
  • pressure monitoring in the fly jib cylinders guarantees optimal lifting of loads in any angular position
  • dual fly jib cylinders for even more security and protection against lateral forces
Dual luffing cylinders
  • boom raised with low torsion thanks to two luffing cylinders
  • double safety due to two cylinders
  • better absorption of lateral guide forces, making the boom more stable and still
Energy supply
  • protected routing of all moving electrical and hydraulic leads in or on the mast
  • no hose or cable reels on the mast
  • low-maintenance hydraulic pipework made of galvanised steel used in the substructure, meaning there is no need to change hydraulic hoses
Telescopic winch
  • quick telescoping under load thanks to patented Klaas rope technology
  • integrated electronic length measurement records current extension length of the mast and calculates maximum possible payload
  • low net weight of the ropes increases range of action and payload
  • low-maintenance and very easy to reach rope technology

einschiebbare Deichsel

  • reducing the total length from 9.25 m to 7.00 m enables set-up even where there is not much room
Crane control system
  • ultra-modern safety PLC for the crane operation
  • CAN BUS control block for particularly sensitive and accurate work
  • soft start/stop for low-vibration work
  • radio remote control with LCD display (can also be operated with cable, e.g. in case of wireless network interference)
Radio remote control
  • memory function learns two target points (e.g. where material is on the ground and unloading point on the roof), during which the crane moves in safe hold-to-run mode
  • difficult-to-see places moved to with pinpoint accuracy
  • all the crane’s key operating statuses shown on the display
  • power supplied by standard batteries or cable
Drive concept
  • powerful diesel engine for the crane operation
  • low fuel consumption meaning enormous cost saving and reduction of environmental impact
  • electronic tank monitoring on the crane and display via the remote control unit

Full panelling

  • roomy, lockable storage compartments
  • secure storage of tools and accessories
  • large storage surface on the crane
  • high-quality, neat overall appearance thanks to aluminium full checker plate panelling
  • upper structure with the boom can be rotated 360°

Optional equipment

Self-drive mechanism
  • hydraulic self-drive mechanism operated by standard remote control
  • two-axle models equipped with a lift axle
  • easy manoeuvring in tight spaces

Accessory fix system

  • accessories are securely stored and immediately ready to hand
  • no cumbersome lashing necessary
  • custom-fit holders ensure safety on the road
  • crane equipped with required holders

Technical specifications

Hook load (stand./opt.)1,500 / – kg
Hook height29.8 m
Total weight≥ 3.5 t
Extension length30.70 m
Support width (min.)2.85 m
Support width (max.)5.02 m
Winch pulling force1,500 kg
Boom (1,500 kg)5.46 m
Pull-out 1 (800 kg)9.12 m
Vehicle dimensions9,24 x 2,28 x 2,48 m
Towing capacity3.50 t

Work area

LoadRangeHeight
1,500 kg4.50 m22.00 m
1,000 kg8.00 m20.80 m
800 kg9.50 m24.50 m
500 kg14.00 m24.00 m
250 kg21.00 m17.50 m

Load diagrams



Subject to technical changes. All dimensions are approximate. The right is reserved to alter the functions and performance. The information reflects the appliance performance at the time of publication.
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