Trailer cranes

Thanks to its enormous load capacity of 1,600 kg, the K400 RSX is the most powerful Klaas trailer crane, with a hook height of more than 34 m. Equipped with a duar hydraulically telescopic fly jib, it represents considerable added value for everyday work in the urban sector, on tight building sites and in assembly mode. The first two elements of the fly jib can be retracted or extended by remote control, even in platform mode. This means that the trailer crane can be set up even where there is little room, thus opening up new application areas for working with and without a platform.

With the newly developed X-support, the K400 has a support behaviour that is otherwise only known from large truck cranes. It ensures a quiet and safe stand even with high loads. The large lift of the outriggers enables a consistently large support surface even on uneven terrain and thus high performance values.

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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

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

Dual 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

Twin luffing cylinders

  • higher loads lifted on integrated extensions thanks to newly designed folding jib joint
  • pressure monitoring in the folding jib cylinders guarantees optimal lifting of loads in any angular position
  • twin luffing cylinders for even more security and protection against lateral forces

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

Automatic levelling

  • the crane is completely set up quickly and easily using the radio remote control
  • each individual support infinitely extends laterally
  • automatic levelling of the support cylinders for optimal set-up even on uneven surfaces
  • constant pressure monitoring reacts to changing outside conditions

Endlessly rotatable

  • upper structure with the boom can be rotated 360°

Boom 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

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)

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

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

Retractable drawbar

  • reducing the total length from 9.25 m to 7.00 m enables set-up even where there is not much room

X-Outriggers

  • optimum stability due to X-support
  • greater lateral projection thanks to wider support
  • improved guidance of the supports

Hydraulic, telescopic fly jib

  • hydraulic telescoping of the first and second folding top elements
  • simultaneous extension of both drawers ensures optimum load distribution
  • utilization of the folding tip even in narrow body situations thanks to variability and "extending in the air"
  • hydraulic telescoping also in stage operation

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

Personal safety mode according to BG guidelines

  • models are prepared for personal safety mode in accordance with BG guidelines
  • for working at great heights without stationary securing options such as scaffolding or safety eyes
  • securing of persons by crane boom allows free working at exposed places

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

Working platform

  • The crane can be converted to a fully-fledged working platform in less than 5 minutes.
  • 230 V socket provides power for electric tools in the working platform.
  • The working platform can be swivelled left and right by 45° to either side.

Mounting-/glass hook

  • every Klaas mobile crane can be equipped with an optional mountinghook function
  • assembly hook enables precise material transport
  • application area: e. g. glass mounting with vacuum lifter

Technical specifications

Hook load (stand./opt.)1,600 /3,000 kg
Hook height34.3 m
Total weight≥ 3.5 t
Boom length35.50 m
Outrigger width (min.)3.50 m
Outrigger width (min. by HA)3.90 m
Outrigger width (max.)5.64 m
Winch capacity1,600 kg
Boom (1,600 - 350 kg)5.01 - 11.81 m
Extension 3 (250 kg)13.90 m
Vehicle dimensions9.43 x 2.35 x 2.61 m
Towing capacity3.50 t

Working range

LoadRangeHeight
1,600 kg5.00 m21.50 m
1,000 kg9.00 m23.50 m
500 kg16.50 m23.50 m
250 kg24.00 m22.00 m
3t-Funktion
3,000 kg3.20 m9.00 m
2,000 kg5.50 m6.00 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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