Trailer cranes

The K280 is a reliable all-rounder for roofers and carpenters, most of whom work in the private construction sector. Its hook height is 25.5 m, the reach with a load of 250 kg is a proud 18.50 m. Since its buckling edge height is around 22 m, the K280 can also reach the rear sides of multi-storey residential buildings without having to move the crane. A hydraulic folding joint, which is operated by remote control, ensures comfortable and quick erection. Thanks to its self-propelled drive and a small footprint, the Klaas lightweight is the ideal crane for narrow construction sites.

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Equipment

Telescoping 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

Double derricking 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

Radio remote control

  • precise starting thanks to sensitive joysticks
  • large display provides a clear indication of all the crane’s key operating statuses
  • power supplied by standard batteries or cable
  • equipment with memory function possible
  • this 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

Endlessly rotatable

  • high-quality turntable from German brand manufacture
  • well thought-out rotary guide enables endless rotation of the upper carriage in both directions

Boom system

  • extremely strong and weather-resistant aluminium special alloy with low net weight
  • no strength loss in the welding seam due to 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

Crane control system

  • complex control system according to EN 280 and EN 13000
  • 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
  • extension with additional remote control possible

Drive concept

  • equipped with an economic gasoline engine for the crane operation
  • low fuel consumption meaning enormous cost saving and reduction of environmental impact
  • electronic tank monitoring on the crane and via the remote control unit

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

Fly jib joint

  • hydraulic fly jib joint ensures quick and easy set-up
  • higher loads lifted on integrated extensions thanks to strong fly jib joint
  • dual fly jib cylinders for even more security and protection against lateral forces

H-Outriggers

  • after manual extension of the support cylinders, a hydraulic system ensures continuous and variable height levelling
  • no fixed increments that restrict the operator
  • ASC support monitoring system permanently checks the stability of the crane, also taking into account wind and ground conditions
  • l-shaped support ensure best possible safety against overturning
  • support without underpinning possible thanks to long, vertical cylinder

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

Optional equipment

Accessory fix system

  • accessories are securely stored and immediately within reach
  • no cumbersome lashing necessary
  • custom-fit holders ensure safety on the road
  • crane equipped with fitting brackets

Technical specifications

Hook load (stand./opt.)800 / – kg
Hook height25.5 m
Total weight2.8 to 3 t
Boom length27.00 m
Outrigger width (min.)2.90 m
Outrigger width (max.)493 m
Winch capacity800 kg
Boom (800 kg)4.50 m
Vehicle dimensions9.21 x 2.12 x 2.50 m
Towing capacity2.8 to 3 t

Working range

LoadRangeHeight
800 kg6.50 m19.00 m
500 kg11.50 m15.00 m
350 kg15.00 m19.00 m
300 kg16.50 m17.50 m
250 kg18.50 m14.50 m

Working range 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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