Products Description
The cast iron housing screw jack is a robust industrial linear lifting mechanism engineered for heavy-load, continuous and harsh working environments. Featuring an integrally cast thick iron shell, this mechanical lifting unit delivers exceptional rigidity, vibration resistance and structural stability compared with alloy housing jacks. With reliable worm gear transmission and trapezoidal screw drive, it provides steady vertical lifting, pushing, tilting and horizontal displacement. Its outstanding durability and anti-deformation capability make it a preferred heavy-duty lifting solution for rugged industrial workshops.
Cast iron housing screw jack




Product Applications
Cast iron screw jacks are widely deployed in heavy industrial scenarios that demand high rigidity, strong shock resistance and long service life. The thick cast iron casing enables stable operation under heavy static load, vibration and temperature fluctuation. Typical application industries include:
Metallurgy & Heavy Industry: Furnace door lifting, rolling mill gap adjustment, high-temperature equipment positioning and heavy mold clamping. The cast iron shell resists thermal deformation in high-temperature workshops.
Construction & Infrastructure: Bridge support jacking, building formwork adjustment, foundation leveling and large structural component calibration.
Mechanical Manufacturing: Heavy workbench lifting, assembly tooling positioning, mechanical frame leveling and large equipment installation assistance.
Port & Logistics Equipment: Heavy loading platform height adjustment, container auxiliary support and cargo stabilization mechanism.
Energy Industry: Solar bracket angle adjustment, wind power equipment auxiliary lifting and power station heavy equipment maintenance.
Material Processing Machinery: Mixer lifting, crusher gap adjustment and industrial drying equipment height positioning.
Product Input Methods
To adapt to diverse industrial driving requirements, the cast iron housing screw jack supports multiple flexible input modes. Users can select single input or combined synchronous driving methods according to on-site power conditions and automation levels:
Manual Handwheel Input: Equipped with detachable handwheel or crank handle for powerless manual adjustment. This mode is suitable for debugging, low-frequency movement and outdoor environments without power supply. It features simple operation and precise micro-adjustment.
Electric Motor Direct Input: Flange-mounted motor directly connected to the jack input shaft. Compatible with three-phase asynchronous motors, brake motors and inverter motors for automatic continuous operation.
Double-side Shaft Input: Both sides of the worm shaft are reserved for power connection, allowing dual-power input or linkage installation. It is commonly used for multi-jack synchronous lifting systems.
Intermediate Reducer Input: Matched with helical gear reducers and worm reducers to increase output torque, meeting ultra-heavy load and low-speed working demands.
Servo Motor Custom Input: With customized connecting flange, it supports high-precision servo drive for precise positioning and automated stroke control.
Product End Configurations
The screw rod end of cast iron housing screw jack has various interchangeable head types to match different connection structures and load installation methods. Each end form is mechanically optimized for stress dispersion and installation convenience:
Plain Screw End: Flat smooth rod end without any thread or groove. Suitable for simple top support and vertical jacking tasks with flat contact surfaces.
Threaded Screw Head: External trapezoidal or metric thread on the rod end. It can be directly locked with flanges, connectors and customized fixtures for fixed connection and tension load.
U-shaped Fork Head: Fork connector with pin hole, designed for hinged connection. It is suitable for swinging, tilting and angular displacement mechanical structures.
Flange Mounting Head: Integrated circular flange at the rod end for bolt fixing. Ideal for vertical pulling and precision locking installation.
Anti-rotation Square Head: Custom square rod end to prevent screw rotation during lifting, ensuring pure vertical linear displacement without lateral torsion.
Technical Parameter Table
|
Parameter Item |
Standard Specification Range |
Customizable Range |
Remarks |
|---|---|---|---|
|
Rated Load Capacity |
10kN - 500kN |
5kN - 800kN |
Cast iron housing for heavy rigidity |
|
Effective Stroke |
100mm - 2000mm |
50mm - 8000mm |
Long stroke reinforced screw available |
|
Transmission Ratio |
12:1 - 60:1 |
Custom special gear ratio |
Low ratio fast speed; high ratio high torque |
|
Lifting Speed |
0.15m/min - 2.5m/min |
0.08m/min - 4m/min |
Depends on input speed and lead |
|
Housing Material |
Thick Cast Iron |
Ductile Iron upgraded |
Anti-vibration & anti-deformation |
|
Screw Thread Type |
Trapezoidal Thread |
Ball screw optional |
Trapezoidal with self-locking function |
|
Surface Treatment |
Anti-rust Spray Painting |
Galvanized & blackening |
Corrosion resistance upgrade |
|
Protection Grade |
IP54 |
IP65 optional |
Dustproof and splash-proof |
|
Allowable Temperature |
-20℃ ~ +85℃ |
-30℃ ~ +110℃ |
High temp resistant grease optional |
|
Input Driving Mode |
Manual / Electric |
Synchronous linkage customized |
Multiple input combinations |
|
Screw End Type |
5 Standard Head Types |
Custom special connector |
Fits diverse connection demands |
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