Replacement Parts for Steel Mandrel Pipeline Pigs
- Custom, no standard size
- Cast solid polyurethane, not foam
- Conical cups are available with a variety of wear-resistant additives
- Resists chemicals, wear—lasts longer than rubber cups
- Custom, no standard size
- Cast solid polyurethane, not foam
- Conical cups are available with a variety of wear-resistant additives
- Resists chemicals, wear—lasts longer than rubber cups
As a China manufacturer and supplier of pipeline pigging components, we make custom polyurethane conical cups using a custom high-performance polyurethane and super wear-resistant formulation. Our Pipeline Pig Cups are liquid cast for precision, ensuring they adapt to 20% pipe diameter changes and maintain seals in long runs or out-of-round pipes. Each pig conical cup undergoes strict tear and abrasion testing .
Our Polyurethane Conical Cups serve oil/gas , chemical (corrosive fluid batching), and pipeline maintenance (anomaly traversal) industries. They integrate seamlessly with most metal mandrel bodies for displacement, cleaning, and batching operations.
| ustomization Parameter | Available Options | Industry/Application Scenario |
|---|---|---|
| Polyurethane Blends | - Oil & chemical resistant - Water and weather resistant | Pipeline pig cups for oilfield ; chemical-resistant pig conical cups for refineries |
| Wear Additives | - Standard abrasion resistant - Very abrasion resistant polyurethane | Enhanced-additive polyurethane conical cups for long-distance pipeline runs |
| Size | 4″–36″ diameter (fits most pig bodies) | 8″ for out-of-round gas pipes; 16″ for crude oil |
| Hardness (Shore A) | 70A–95A (flexibility-seal balance) | 75A pig conical cups for pipe anomalies; 85A for displacement operations |
| Mandrel Compatibility | Carbon Steel/304 SS/Aluminum | 304 SS-matched polyurethane conical cups for marine pipelines |
- Handles 20% pipe diameter changes easily.
- Reliathane offers outstanding cut/abrasion resistance for long life.
- High tear strength prevents damage during anomaly traversal.
- Maintains tight seal in out-of-round pipes and long runs.
- More flexible than scraper cups for smooth pigging.


- BASF urethane material used
- Quality inspection for crack, bubbles and tear for each urethane pigs
- Design and technical support
- Custom liquid-cast designs fit 95% of metal mandrel bodies.
- Relative low tooling cost
- Specific polyurethane physical properties test reports (hardness/tear/tensile/abrasion) provided for each order.
Yes. We are manufacturer. Welcome to visit our factory.
Yes. The process includes Share needs → design & quote → prototype (opt) → production → delivery.
We have 10 inspectors to carry out raw material inspection, process control ,first article inspection and final inspection.
We use the ERP system to execute orders, and can check the order status and expected delivery time at any time.
All of products with 3-6 months guarantee (except very frequently wearing parts).
We will response in 24 hours with solutions such as replacement or reworking.
We have dedicated personnel to sort out and maintain molds regularly.
20,000 times for compressions molds and 30,000 time for casting molds
Due to the large quantity of molds, we can keep the molds for free for 2 to 3 years even if no order.
Customers only need to pay mold cost once. We will cover the cost if molds are damaged or reach the lifespan.
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