Core Cylinder: Bore Diameter 32mm to 100mm

Component Specifications

Definition

The core cylinder is a critical pneumatic actuator component within spool machinery systems, specifically designed to provide precise linear motion for winding and unwinding operations. It consists of a cylindrical barrel, piston, piston rod, and sealing elements that work together to convert compressed air energy into controlled mechanical force. This component ensures consistent tension and alignment during material processing on spools, reels, or bobbins across various manufacturing applications.

Working Principle

Operates on pneumatic pressure differential principles: compressed air enters through ports to create pressure on one side of the piston, forcing linear movement of the piston rod. Directional control valves alternate air supply to extend or retract the rod, enabling precise positioning and force application for spool winding mechanisms.

Materials

Barrel: Aluminum alloy 6061-T6 or stainless steel 304; Piston: Anodized aluminum or hardened steel; Piston Rod: Chrome-plated steel or stainless steel 316; Seals: Nitrile rubber (NBR) or polyurethane for standard applications, fluorocarbon (FKM) for high-temperature resistance; End Caps: Aluminum or ductile iron.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Cushioning	Adjustable pneumatic cushions
Rod Thread	M10 to M30 metric threads
Bore Diameter	32mm to 100mm
Stroke Length	50mm to 500mm
Mounting Style	Foot, flange, or clevis
Operating Pressure	0.1 to 1.0 MPa
Operating Temperature	-10°C to 80°C

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

Standards

ISO 6431, ISO 15552, DIN ISO 6431, VDMA 24562

Parent Products

This component is used in the following industrial products

Spool

A cylindrical component designed to hold and dispense thread, wire, or other flexible materials in manufacturing processes.

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Engineering Analysis

Risks & Mitigation

Seal degradation from contaminated air
Rod corrosion in humid environments
Misalignment causing uneven wear
Overpressure damaging internal components

FMEA Triads

Trigger: Contaminated compressed air
Failure: Seal abrasion and leakage
Mitigation: Install proper filtration (5 micron) and dryers in air supply system

Trigger: Improper mounting alignment
Failure: Premature rod and bearing wear
Mitigation: Use alignment tools during installation and verify perpendicularity to load

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Cylinder bore: H8 tolerance, Piston rod: h9 tolerance, Stroke length: ±1mm accuracy

Test Method

Pressure decay test per ISO 19973-1, cycle testing at maximum operating pressure, seal leakage verification with soap bubble method

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Core Cylinder

Manufacturer profiles associated with Core Cylinder.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What maintenance does a core cylinder require?

Regular inspection of seals for wear, lubrication of rod and bearings, checking for air leaks, and ensuring clean, dry compressed air supply to prevent contamination.

How do I select the right core cylinder for my spool machine?

Consider required force (calculate from bore size and pressure), stroke length needed for spool diameter, mounting configuration, environmental conditions (temperature, contaminants), and compatibility with existing pneumatic systems.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Core Cylinder