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Stainless Piston Tubes - Inch

Stainless Piston Tubes - Inch

Stainless Piston Tubes - Inch (PCS Company) are designed for fast mold heat removal, using a hollow stainless steel tube for reliable, high-strength cooling performance. They support maximum cooling rates whether used as standalone cooling tubing or integrated into rear-load cascades.

  • Hollow stainless steel construction for efficient heat transfer and dependable strength
  • Optimized coolant flow path with flush seal pipe plug and high-flow tube design
  • Available in inch lengths up to 48 in for flexible mold layouts
  • Compatible as a component on its own or within rear-load cascades assemblies

Specifications

2 configurations available

Pipe Tap Size (NPT)Tube O.D. (in)Tube I.D. (in)
1/16"0.125"0.109"
1/8"0.187"0.167"

Product Guide

🏭Application Scenarios+

These stainless piston tubes are used inside injection mold tooling to accelerate heat removal through a hollow tube heat-transfer path. Because they are intended for high-strength cooling with an internal flow channel, they fit best in molds that need tighter cycle-time control and stable coolant flow.

  • Automotive and industrial connector molds: Install as standalone cooling pipes behind thin-wall cavities to improve uniform mold temperature and reduce variation across the tool surface.
  • Electronics housings and inserts: Use multiple lines to target local hot spots around metal inserts while maintaining a compact footprint; hollow construction supports dependable heat transfer.
  • Tools using rear-load cascades: Integrate the tubes into rear-load cascade assemblies to scale cooling capacity without re-plumbing the entire backplate.

The available inch tap sizes (NPT 1/16" and 1/8") and the defined tube O.D./I.D. ranges help match nozzle/cascade manifolds and maintain consistent coolant routing for maximum cooling rates.

🔧Material & Process Details+

This component uses a stainless steel hollow tube design to support reliable, high-strength cooling performance in mold environments. Stainless construction helps resist corrosion from typical water-based and mixed coolant conditions encountered in production.

  • Heat treatment: No specific heat-treatment state (e.g., quenched & tempered, nitrided) is provided in the supplied specifications; verify the exact grade and condition with the manufacturer for critical wear or lifespan requirements.
  • Hardness & wear resistance: Hardness (HRC) data is not included in the provided parameters; stainless tubes are typically selected more for chemical resistance and dimensional stability than for extreme abrasion resistance compared with hardened tool steels.
  • Manufacturing process: In practice, these tubes are fabricated as hollow stainless stock and machined to inch dimensions, with sealing interface features such as a flush seal pipe plug referenced in the description for stable coolant flow.

When selecting alternatives, compare stainless tubes for corrosion resistance versus hardened tool-steel cooling channels when abrasion or high particulate exposure is the primary driver.

📐Sizing & Selection Guide+

Select the tube and connection dimensions to match your mold cavity/core cooling layout and the interface to the manifold/cascade plumbing.

  • Choose the pipe tap size (NPT): Use 1/16" or 1/8" based on your rear-load cascade ports or inlet/outlet plumbing specifications.
  • Match the tube outer/inner diameter: Select O.D. 0.125" with I.D. 0.109" for the smaller line, or O.D. 0.187" with I.D. 0.167" for higher internal flow cross-section.
  • Verify physical fit in the mold: Ensure clearance around the outer diameter and confirm routing constraints in the cooling pocket/backplate.
  • Consider sealing/plug interfaces: The design references a flush seal pipe plug; match the sealing interface to your manifold/cascade system to avoid leakage and maintain cooling rate.

Tolerance/fit ranges are not provided in the input data; during design review, confirm allowable clearances with your supplier drawings to prevent interference and to achieve the intended hydraulic performance.

Frequently Asked Questions

Which NPT pipe tap size should I specify for these stainless piston tubes in a rear-load cascade?+

The provided tap sizes are 1/16" NPT and 1/8" NPT. Choose the size that matches the threaded ports on your cascade manifold/backplate. If your cascade uses a smaller port, select the 1/16" option to maintain compatibility with the existing plumbing.

What tube O.D. and I.D. combinations are available for sizing cooling flow and drilling pockets?+

Two inch-dimension sets are listed: O.D. 0.125" with I.D. 0.109", and O.D. 0.187" with I.D. 0.167". Use O.D. to verify pocket/backplate clearance, and I.D. to estimate internal flow area. Confirm that your manifold/cascade flow capacity aligns with the chosen I.D.

Can these stainless piston tubes be used standalone, or only as part of rear-load cascades?+

They are described as suitable for use as standalone cooling tubing or integrated into rear-load cascades. When used standalone, match the NPT tap size to your direct plumbing connection points. When integrated, ensure the tube interface and sealing features align with the cascade assembly ports.

Are heat treatment and hardness (HRC) specified for the stainless piston tube material?+

The provided specifications do not include a specific stainless grade, heat-treatment state, or hardness (HRC) value. For applications requiring defined surface hardness or long-term resistance to wear, request the detailed material datasheet (grade and condition) and confirm compatibility with your expected coolant chemistry and operating temperatures.

How do I ensure the flush seal pipe plug interface will maintain leak-free cooling performance?+

The description references an optimized coolant flow path using a flush seal pipe plug and high-flow tube design. To ensure leak-free operation, match the plug/seal interface to the manifold or cascade sealing surfaces used in your tool. During build, confirm thread engagement for the selected NPT 1/16" or NPT 1/8" variant.

Need Custom Specifications?

Our engineering team can help with custom configurations, material selection, and volume pricing.