JLS250 Jacking Load Shoes

JLS250 Jacking Load Shoes

JLS250 Jacking Load Shoes
The “Up N’ Go” system

Our JLS250 jacking load shoes are load-compensating skid shoes designed to work with Hydra-Slide™ Heavy Track skidding systems to provide exceptional overall load moving capability.

This universal shoe can be used with both the HT300 and HT500 interchangeably.

The JLS250 shoes can be connected hydraulically with any number of other shoes increasing the total system capacity while maintaining equal load support and weight distribution.

JLS250 Jacking Load Shoes used to skid a Tunnel Boring Machine underground.
The Jacking Load Shoes are load-compensating, so load stability is maximized during operations. Here shown sliding a large vessel out of a building.
Close up of two of the load shoes hydraulically connected to each other in a 3-point suspension grouping.

Each JLS250 shoe includes a 250 ton (227 tonne) double-acting lift cylinder and skid system push cylinder

Low overall height for greater stability

Reinforced top plate on skid shoe for blocking load

Two articulated skid shoes for better contact with skid track

Connection points for spacer poles (not included) for precise position control

Individual pressure gauge and shut-off valve on each shoe

Two pressure ports and two return ports for parallel connection to other JLS250 shoes

Can be configured in 3-point or 4-point suspension groupings for greater stability and load distribution

Engineered stamped General Arrangement drawings included

Recommended to be operated with a Hydra-Pac™ Synchronous power unit to ensure uniform synchronized movement.

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JLS250 (300) Technical Specifications

Base Skidding System HT300
System Capacity – 4 Shoes 600 ton
System Capacity – 6 Shoes 900 ton
System Capacity – 8 Shoes 1200 ton
Lift Cylinder Capacity 250 ton
Lift Cylinder Stroke 10″
Tilting Load Cap +/- 5%
Push Cylinder Capacity 30 ton
Push Cylinder Stroke 14.25″
Skidding Speed* 90 ft/hr
Slide Surface Material Graphite
System Coefficient of Friction 15-20%
Maximum Slope +/- 2%
Track Alignment Tolerance +/- 0.25″
Maximum Operating Pressure 10,000 psi
Hydraulic Groupings 3-point or 4-point

* Speed based on 20-2-4D Hydra Pac

 

JLS250 (500) Technical Specifications

Base Skidding System HT500
System Capacity – 4 Shoes 1000 ton
System Capacity – 6 Shoes 1500 ton
System Capacity – 8 Shoes 2000 ton
Lift Cylinder Capacity 250 ton
Lift Cylinder Stroke 10″
Tilting Load Cap +/- 5%
Push Cylinder Capacity 55 ton
Push Cylinder Stroke 13″
Skidding Speed* 55 ft/hr
Slide Surface Material Graphite
System Coefficient of Friction 15-20%
Maximum Slope +/- 2%
Track Alignment Tolerance +/- 0.25″
Maximum Operating Pressure 10,000 psi
Hydraulic Groupings 3-point or 4-point

* Speed based on 20-2-4D Hydra Pac

 

 

JLS250 Dimensions

Tare Weight per Shoe 2100 lbs
Length 58″
Width 24″
Height – Fully Retracted (HT300) 31.75″
Height – Fully Extended (HT300) 41.75″
Height – Fully Retracted (HT500) 33.5″
Height – Fully Extended (HT500) 43.5″
       

JLS250 (300) Technical Specifications

Base Skidding System HT300
System Capacity – 4 Shoes 544 tonne
System Capacity – 6 Shoes 816 tonne
System Capacity – 8 Shoes 1089 tonne
Lift Cylinder Capacity 227 tonne
Lift Cylinder Stroke 254 mm
Tilting Load Cap +/- 5%
Push Cylinder Capacity 27 tonne
Push Cylinder Stroke 362 mm
Skidding Speed* 27 m/hr
Slide Surface Material Graphite
System Coefficient of Friction 15-20%
Maximum Slope +/- 2%
Track Alignment Tolerance +/- 6 mm
Maximum Operating Pressure 700 bar
Hydraulic Groupings 3-point or 4-point

* Speed based on 20-2-4D Hydra Pac

 

JLS250 (500) Technical Specifications

Base Skidding System HT500
System Capacity – 4 Shoes 907 tonne
System Capacity – 6 Shoes 1361 tonne
System Capacity – 8 Shoes 1814 tonne
Lift Cylinder Capacity 227 tonne
Lift Cylinder Stroke 254 mm
Tilting Load Cap +/- 5%
Push Cylinder Capacity 50 tonne
Push Cylinder Stroke 333 mm
Skidding Speed* 17 m/hr
Slide Surface Material Graphite
System Coefficient of Friction 15-20%
Maximum Slope +/- 2%
Track Alignment Tolerance +/- 6 mm
Maximum Operating Pressure 700 bar
Hydraulic Groupings 3-point or 4-point

* Speed based on 20-2-4D Hydra Pac

 

 

JLS250 Dimensions

Tare Weight per Shoe 953 kg
Length 147 cm
Width 61 cm
Height – Fully Retracted (HT300) 81 cm
Height – Fully Extended (HT300) 106 cm
Height – Fully Retracted (HT500) 85 cm
Height – Fully Extended (HT500) 110 cm