Two mechanically synchronised chain lead-offs

Double chain hoists

Demag double chain hoists: two mechanically synchronised chain lead-offs

Double chain hoists that have two mechanically synchronised chain lead-offs are particularly suited for handling long materials and for spreader operation. LDC-D or KLDC-D variants can be supplied.

Your Contact

Demag contact

Demag Cranes & Components GmbH

Postfach 67
58286 Wetter
Germany

Phone:
+49 (0) 2335 92-0
Fax:
+49 (0) 2335 92-7676

Product information

The benefits at a glance

LDC-D benefits

  • Suitable for higher speeds
  • Longer chain service life thanks to reduced polygon effect since there are no additional chain return sprockets
  • Load capacities up to 5 t
  • Hook centre distances from 550 mm to 3,200 mm
  • Lifting speeds up to 24 m/min
  • Available with 2-stage or variable speeds
  • Possible variants: stationary, travelling, for operation with KBK and for articulated trolleys
  • Asymmetric load distribution permitted

KLDC-D benefits

  • Low C dimension as for low-headroom design for optimum utilisation of the available headroom
  • 2/4 lead-off position
  • Load capacities up to 2 t
  • Hook centre distances from 400 mm to 4,600 mm
  • Available with 2-stage or variable speeds
  • Possible variants: stationary, travelling, for operation with KBK and for articulated trolleys
  • Asymmetric load distribution permitted

Further information

Two chain lead-offs – tandem operation

Two chain hoists can be used in tandem as an alternative to mechanically synchronised double chain hoists for transporting long materials and car bodies, etc.

  • Parallel control from one control point
  • Tandem control (not synchronised control) for safe operation as a „group“ according to DIN EN 15011.
  • Individual chain hoists can be controlled by means of a selector switch.

Further KLDC-lead-off positions

KLDC-D double chain hoist

 

  • KLDC-D double chain hoist: low-headroom design, 3/4 lead-off position
  • Alternative lead-off positions depending on the size of the load handling attachments
KLDC-D double chain hoist: low-headroom design, 4/5 lead-off position

 

  • KLDC-D double chain hoist: low-headroom design, 4/5 lead-off position
  • Alternative lead-off positions depending on the size of the load handling attachments

Customer benefits at glance

Safety

Safety

  • Low-voltage control pendant thanks to 24 V contactor control system
  • Safety-related functions satisfy at least Performance Level c and Category 2 to EN ISO 13849-1
Minimum load sway

Minimum load sway

  • Smooth cross-travel starting and braking motions for low-sway load handling
  • Speeds and acceleration/braking rates can be modified by means of the control pendant, if required
Long service life

Long service life

  • Generously specified gearbox. 2m+ (1,900 hours) for main load capacities and up to 4m (6,300 hours) for demanding applications
  • All sub-assemblies of the chain hoist are rated for a long service life, even under the most demanding conditions
Temperature range

Temperature range

  • Reliable operation from -20 °C to +45 °C without any reduction in the duty factor
  • Operation also possible up to 60 °C and more
Ergonomics

Ergonomics

  • Length of control cable or position of control pendant can be adjusted without the need for any wiring
  • Length of control cable that is not needed can be stored under the service cover
High performance monitor

High-performance motor

  • Hoist motor has large safety reserves to provide for reliable operation for many years
  • Can be used for switching cycles way beyond usual market levels
Pro Hub function

Pro-Hub function

  • Up to 90% higher rated lifting speed in reduced load range
Easy to service

Easy to service

  • Gearbox & slipping clutch maintenance-free for up to 10 years
  • Brake maintenance-free for up to 10 years (up to 5 years for DC 10–25)
  • Simple and rapid maintenance and repair of individual components thanks to the modular chain hoist design – cuts any downtime to a minimum
Variable speeds

Variable speeds

  • Valuable and sensitive parts can be moved and positioned more smoothly and reliably
  • Variable button characteristic like a car accelerator pedal
Status display

Status display

  • Display for elapsed operating time counter and operating statuses
  • Always up-to-date for service purposes
Slipping clutch monitoring

Slipping clutch monitoring

  • Harmful continuous slipping eliminated thanks to speed monitoring
  • Reliable protection against extreme overload
  • Load securely held in any operating situation and cannot drop while hoist is at standstill, since brake is arranged in front of the slipping clutch in load-bearing arrangement
Low noise level

Low noise level

  • Reduced operating noise thanks to helical gearing in all gearbox stages
  • Smooth running characteristics thanks to high-quality gearing
Online product configurator

Online product configurator

  • Easy to use
  • Specify products to meet your needs
  • Save your configuration
  • Immediate results
  • Online ordering via Demag Shop
CAD geometry data

CAD geometry data

  • Configure 2D or 3D geometry data online in many file formats
  • 3D PDF for rapid view without CAD program
Information avaible 24/7

Information available 24/7

  • Whenever you want
  • Up-to-date information
Documentation

Documentation

  • Product description
  • Technical data
  • Circuit diagrams
  • Documents

Downloads

Technical data