Lift Cylinder / Actuator for Ladle Lift & Seal Mechanism

Product Specifications

Technical details and manufacturing context for Lift Cylinder / Actuator

Definition

The lift cylinder/actuator is a critical component within the Ladle Lift & Seal Mechanism, responsible for generating the precise vertical motion required to raise and lower the ladle. It converts fluid pressure (hydraulic or pneumatic) into controlled mechanical force, enabling the ladle to be positioned accurately for pouring operations and then securely lowered onto the seal to prevent spillage and contamination. This component is typically a linear actuator consisting of a barrel, piston, rod, end caps, and seals. The barrel is usually made of carbon steel, while the rod is chrome-plated steel for wear resistance. End caps may be cast iron or steel, and seals are commonly polyurethane or nitrile rubber. The cylinder operates by introducing pressurized fluid (oil or air) into one side of a sealed chamber, forcing the piston rod to extend or retract. This linear motion is transferred to the ladle assembly via mechanical linkages. Control valves regulate fluid flow, allowing precise control over speed, force, and position. Key parameters include bore diameter (50–200 mm), stroke length (100–500 mm), operating pressure (1.0–1.6 MPa), lifting force (20–500 kN), operating temperature (-20 to 80°C), piston rod diameter (20–100 mm), cylinder speed (0.1–0.5 m/s), seal material (NBR–FKM), cylinder material (ST52–C45), rod surface treatment (Cr-plated 20–30 µm), mounting type (clevis or flange), port size (G1/4–G1/2), and weight (15–150 kg). These values are reference ranges and must be confirmed for the specific model and application. Standards such as ISO 6020-2, ISO 1629, DIN 2391, ISO 6158, and ISO 228-1 are listed as procurement references. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The cylinder operates by introducing pressurized fluid (oil or air) into one side of a sealed chamber, forcing a piston rod to extend or retract. This linear motion is transferred to the ladle assembly via mechanical linkages. Control valves regulate the fluid flow, allowing for precise control over the speed, force, and position of the lift.

Common Materials

Chrome-plated steel (rod), Carbon steel (barrel/tube), Cast iron or steel (end caps), Polyurethane or nitrile rubber (seals)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	50–200 mm	Determines force output; larger bore for higher lift capacity.ISO 6020-2
Stroke Length	100–500 mm	Must match ladle lift height requirement.ISO 6020-2
Operating Pressure	1.0–1.6 MPa
Lifting Force	20–500 kN	Calculated from pressure and bore; must exceed ladle weight.
Operating Temperature	-20–80 °C	Seals degrade above 80°C; below -20°C seals become brittle.
Piston Rod Diameter	20–100 mm	Affects buckling strength and retraction speed.ISO 6020-2
Cylinder Speed	0.1–0.5 m/s	Too high may cause shock; too low reduces cycle time.
Seal Material	NBR–FKM	FKM for high temperature; NBR for standard hydraulic oil.ISO 1629
Cylinder Material	ST52–C45	ST52 for welded cylinders; C45 for honed tubes.DIN 2391
Rod Surface Treatment	Cr-plated 20–30 µm	Hard chrome plating for wear and corrosion resistance.ISO 6158
Mounting Type	Clevis–Flange	Clevis for pivoting; flange for rigid mounting.ISO 6020-2
Port Size	G1/4–G1/2	Must match hydraulic system flow requirements.ISO 228-1
Weight	15–150 kg	Affects installation and structural support.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Cylinder Barrel/Tube Part
Forms the main pressure chamber that houses the piston and fluid. Provides a smooth, sealed surface for piston movement.

Material: Carbon steel
Piston Part
Seals within the barrel and separates the two pressure chambers. Converts fluid pressure into linear force.

Material: Steel or aluminum with seal grooves
Piston Rod Part
Extends from the piston to transmit the linear force to the external load (ladle linkage). Must resist bending and corrosion.

Material: Chrome-plated steel
Rod Gland/End Cap
Seals the rod exit point of the cylinder, containing pressure and preventing contamination. Houses rod seals and wipers.

Material: Cast iron or steel
Seals (Piston & Rod) Part
Create a leak-proof barrier between moving parts and pressure chambers, preventing fluid bypass and maintaining pressure.

Material: Polyurethane or Nitrile Rubber

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lift Cylinder / Actuator.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Ladle Lift & Seal Mechanism

View system integration details

Manufacturers of Lift Cylinder / Actuator

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

YTO Group Corporation

Shanghai, CN

Also makes: Diesel Engine, Agricultural Machinery, Forklift Truck and 1 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical bore diameter range for this lift cylinder?

The bore diameter typically ranges from 50 to 200 mm, as listed in the directory. The exact value depends on the required lifting force and must be confirmed with the manufacturer.

What operating pressure is recommended?

The operating pressure is typically between 1.0 and 1.6 MPa. Always verify the pressure rating for your specific application.

What materials are used for the cylinder and seals?

The barrel is typically carbon steel, the rod is chrome-plated steel, and end caps are cast iron or steel. Seals are commonly polyurethane or nitrile rubber. For high-temperature applications, FKM seals may be used.

How do I select the correct stroke length?

The stroke length must match the ladle lift height requirement. The directory lists a range of 100–500 mm. Confirm the required lift height and consult the manufacturer for the appropriate stroke.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 300 bar hydraulic, 10 bar pneumatic (typical)
flow rate:	Dependent on cylinder bore and required speed (typically 5-100 L/min hydraulic)
temperature:	-20°C to 120°C (standard), up to 200°C with high-temp seals
slurry concentration:	Not recommended for abrasive slurries >5% solids without special rod protection

Lift Cylinder / Actuator

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards