Actuator Piston/Rod

Product Specifications

Technical details and manufacturing context for Actuator Piston/Rod

Definition

The actuator piston/rod is a critical component within the blade holder/actuator assembly, responsible for transmitting force and motion to control blade positioning. It consists of a piston that moves within a cylinder and a rod that extends to connect with the blade holder mechanism. The piston/rod converts fluid pressure into mechanical force and linear displacement, enabling precise control of blade extension, retraction, or positioning. This component is typically manufactured from chrome-plated steel or stainless steel, with material grade 45# (carbon steel) as standard, and stainless steel as an option. Key parameters include bore diameter (32–200 mm, ISO 3320), stroke length (25–500 mm, ISO 4393), rod diameter (12–70 mm, ISO 6195), operating pressure (1.0–1.6 MPa), operating temperature (-40 to 85°C, ISO 8573-1), surface roughness (0.2–0.4 μm Ra, ISO 1302), cylindricity (0.01–0.05 mm, ISO 1101), hardness (28–32 HRC, ISO 6508), and weight (0.5–15 kg). These values are reference ranges and must be verified for the specific model and application. The piston/rod interfaces with the actuator cylinder, seals, and the blade holder mechanism. Proper installation and maintenance are essential for reliable operation. Verification questions include checking the bore and rod diameters against the cylinder and blade holder specifications, confirming the stroke length meets the required travel, and ensuring the operating pressure and temperature are within the rated limits. Maintenance signals include seal wear, leakage, reduced force output, or unusual noise. Failure boundaries include exceeding the maximum operating pressure or temperature, which can cause seal degradation or structural failure. Always consult the legal manufacturer or supplier for model-specific values and standards.

Working Principle

When hydraulic fluid or compressed air is introduced into the actuator cylinder, pressure acts on the piston surface, creating force that pushes the piston and attached rod in a linear direction. This motion is transmitted through the rod to the blade holder, enabling precise control of blade extension, retraction, or positioning. The force generated is proportional to the pressure and the effective piston area. The rod's diameter and stroke length determine the travel range and load capacity. Seals prevent fluid leakage and maintain pressure integrity. The operating pressure and temperature must be kept within specified limits to ensure reliable performance and avoid seal damage.

Common Materials

Chrome-plated steel, Stainless steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	32–200 mm	Determines force outputISO 3320
Stroke Length	25–500 mm	Travel range of the rodISO 4393
Rod Diameter	12–70 mm	Affects buckling strengthISO 6195
Operating Temperature	-40–85 °C	Seals degrade above 85°CISO 8573-1
Surface Roughness	0.2–0.4 μm Ra	Critical for seal lifeISO 1302
Cylindricity	0.01–0.05 mm	Ensures uniform sealingISO 1101
Hardness	28–32 HRC	Wear resistanceISO 6508
Material Grade	45#	Carbon steel; stainless optionalGB/T 699
Weight	0.5–15 kg	Depends on size

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

Piston Head Part
Seals against cylinder wall and transmits pressure force to rod

Material: Hardened steel with sealing rings
Rod End Part
Connection point to blade holder mechanism

Material: Steel with threaded or clevis attachment
Sealing System
Prevents fluid leakage and maintains pressure

Material: Polyurethane or nitrile rubber
Piston Rod
The shaft that carries the piston force out of the cylinder to the blade holder.

Applied To / Applications

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

Blade Holder/Actuator

View system integration details

Manufacturers of Actuator Piston/Rod

Manufacturer profiles associated with Actuator Piston/Rod.

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Frequently Asked Questions

What materials are available for the actuator piston/rod?

The standard material is chrome-plated steel or stainless steel, with material grade 45# (carbon steel) as standard and stainless steel as an option. Confirm the exact material grade with the supplier for your application.

What is the typical operating pressure range?

The reference operating pressure range is 1.0–1.6 MPa. Always verify the pressure rating for your specific model.

How does the piston/rod affect blade positioning?

The piston/rod converts fluid pressure into linear force and motion, which is transmitted to the blade holder. This allows precise control of blade extension, retraction, or positioning. The stroke length and rod diameter determine the travel range and load capacity.

What maintenance signals indicate a problem?

Signs of wear include seal leakage, reduced force output, unusual noise, or visible damage to the rod surface. If any of these occur, inspect the component and consult the manufacturer for replacement or repair.

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)
flow rate:	Dependent on cylinder bore size and velocity requirements
temperature:	-40°C to 120°C
slurry concentration:	Not recommended for abrasive slurries; maximum particle size < 50 μm if unavoidable

Product Specifications

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