Strapping Equipment

Large lmb 250

Wulftec

Automatic Lumber Press Strapping Machine

Model: LMB-250

The LMB-250 is specifically tailored to the LUMBER and Panel Industries. The hydraulic compression strapping system design facilitates maintenance and operation. Top and side compression ensures stable, tight loads that will retain high tension during transportation. The LMB-250 Lumber Press is easily integrated into existing production lines to create a seamless packaging system.

  • 25,000lbs maximum top and side compression.
  • The entire electrical installation is pre- and “hard” wired according to UL 508A, VDE0113 and ENC60105. All cables are covered or assembled within chain channeling when connected to any moving parts of the machine.
  • 100% structural steel construction
  • Ability to strap with polyester or polypropylene strapping without parts change.
  • Superior Electrical/Electronic Design including Allen Bradley Micrologix 1500 logic control
  • Platen up/down motion achieved by 2 hydraulic cylinders using an oversized dual rack and pinion equalizer system.
  • Available with automatic bunk feeder.
  • Available with automatic top corner applicator
  • Easy access for servicing the GS-41HT strapping head
  • Strap dispenser with pulley block accumulation system and electrical brake.
  • Conveyor rollers 2 ½” diameter on 3” centers for smooth operation
  • Allen Bradley Monochrome Touch Screen – play an active part in avoiding operator errors by offering a great versatility for customized information and alarm diagnostics.
  • Up to 8 straps per minute may be applied, depending on package dimensions, strap quality and strap tension required. Maillis PET or other manufacturer strapping may be used without any special adjustment to the strapping head.
  • Strapping patterns can be customized by customer since the systems comes with 2 fully editable strap patterns.
  • Strap tension is adjustable from internal potentiometers.
Machine Dimensions
  • 58" L x 
  • 130" W x 
  • 131.50" H
Approximate Shipping Weight
  • 10000 lbs
  •  
  • (Excluding optional bunk feeder and conveyors*)
Minimum Load Size
  • 32" W x 
  • 15" H
Maximum Load Size
  • 58" H
  •  
  • 60" W x
Maximum Load Weight
  • 5000 lbs
  •  
  • (6000 lbs*)
Electrical Requirements
  • 460 V /
  •  
  • 3 ph /
  •  
  • 60Hz 
  • 40A
Pneumatic Requirements
  • 3 cfm @ 
  • 80 psi
Controls
  • Allen Bradley Micrologix 1500 PLC
  • Allen Bradley PanelView Plus 600 monochrome Touch Panel
  • 24V control system
  • Current overload protection
  • NEMA 4/12 control cabinet with quick disconnect
  • Sick autoheight sensing photoeye with on/off mode
  • Power on/off lockable switch and indicator light
  • 460VAC motors & variable frequency drives
  • Allen BradleyPowerFlex 525
  • Two emergency stop stations (1 on panel / 1 on platen)
  • Manual function for platen up/down and conveyor fwd/rev
  • Variable compression settings
  • Intuitive alarms diagnostic on touch screen
  • Machine and head cycle counters
  • Reset function
  • Strap track with under track allowing under pack strapping
  • 2 fully adjustable strapping patterns
  • Alarm beacon
  • 120 VAC outlet in control panel for service work
Strapping head
  • GS-41 strapping head
  • Possibility to strap with polyester from 3/8" to 5/8" wide
  • Consistently reproducible strap tensioning through an Allen Bradley Powerflex 70 VFD
  • Tension control with motor torque monitoring via the drive
  • Tension is adjustable on the HMI
  • Consistently high seal efficiency
  • Environmentally favorable sealing by vibration welding
  • Separate drive section for high speed strap feeding and take up to achieve maximum tension levels
  • Electronic strap circulation control
  • Accurate tension alignment of the strap
  • Precise and quick adjustment by automatic strap feeding unit
Strap dispenser
  • Coils of strap with a core diameter of 16" can be fitted to these high speed dispensers, with pulley block accumulation system and electrical brake
  • (An optional powered version available for jumbo coil*)
Structure
  • Heavy duty folded sheet metal uprights with upper frame structurally integrated with base for greater stability
Top & Side compression
  • Hydraulic compression pads for greater consistency and reliability
  • Compression controlled with pressure regulator on hydraulic units and pressure switch. Separate regulation for top and side compression
  • Compression speed controlled by flow regulator on hydraulic unit
  • Side compression using an oversized dual rack and pinion equalizer system
  • Maximum compression up to 25 000 lbs
Safety Features
  • Maintenance safety pin to block the platen in place. This pin, when inserted, activate a sensor preventing the machine operation
  • 2 E-Stop mushroom type push buttons: 1 on control panel, and 1 on the platen
Conveyor
Technical Information
  • The machine is provided with a manual including electro/mechanical schematics and drawings, maintenance program and PLC program disk
Notes:
  • Optional
  • Production rate based on load configuration and machine options
  • Overall dimensions of machine in operation
  • All machine specifications are subject to change without prior notice
  • Please consult your distributor for prices.
  • Please note that retrofits are to be installed by a Certified Wulftec Technician.