Cylinder and Structural Shell Components
Tubular bodies and shell structures
What This Part Is And Why It Is Made This Way
Cylindrical iron castings combine a thin shell with heavy flanges at the ends, and the two sections cool at different rates. Controlling that difference is what keeps the bore round and the flanges flat.
Cylinder and shell parts are cast in grey or ductile iron and machined on the bore and the end faces.
What You Get From This Route
Moulding route chosen for uniform cooling across changing sections.
Bore and end faces machined in one setup to hold squareness.
Weight range to 2000 kg covers large shell bodies in one piece.
Application Scenarios
- Cylinder bodies and liners
- Structural shell housings
- Drum and roller bodies
- Enclosed machinery shells
Who It Is For
- Equipment builders with cylindrical housings
- Buyers replacing fabricated shell assemblies
- Maintenance teams sourcing cylinder replacements
Technical Features
- Grey iron and ductile iron grades
- Green sand, resin sand and shell processes
- Machined bore and end faces
- Weight 0.2 kg - 2000 kg
What Buyers Run Into Without This Specification
- The bore goes oval where the flange meets the shell.
- End faces are not square to the bore and assembly binds.
- A fabricated shell needs stress relief and still moves during machining.
Published Material Weight And Process Data
Figures below are the published capability for cast iron. Part specific values — tolerance on individual features, finish, packing — are confirmed at drawing review and marked TBC until then.
| Grey Iron | EN-GJL-150 / 200 / 250 / 300 |
|---|---|
| Ductile Iron | EN-GJS-400 / 450 / 500 / 600 / 700 / 800 |
| ADI | ADI800-10 / ADI1200-3 |
| Weight Range | 0.2 kg - 2000 kg |
| Process | Green sand process; resin sand process; shell process |
| Selection Basis | Grade and moulding route matched to customer drawing and application scenario |
| Part Specific Tolerance | TBC — confirmed against the customer drawing |
| Minimum Order Quantity | TBC — depends on the process route selected |
| Lead Time | TBC — confirmed with the production base at quotation |
How The Part Is Made And Checked
- Green Sand — High volume production of repeat parts at the lowest tooling cost.
- Resin Sand — Larger parts and complex cavities where dimensional stability matters more than cycle time.
- Shell Process — Better surface and dimensional accuracy for mid size batches.
Quality management is based on ISO 9001 and covers supplier management, raw material inspection, production process control and final inspection. Inspection results are archived and traceable.
Options And Alternatives
Parts are produced to the customer drawing rather than to a fixed catalogue item, so material grade, machining scope, surface treatment and packing are all specified per order. Machining, dimensional control, surface treatment and necessary pre-assembly can be added to the same supply route.
Where another process family would suit the part better — for example a forging in place of a casting for a shock loaded connector — that comparison is raised during drawing review rather than after tooling is committed.
How To Specify This Part
Specify squareness of the end faces to the bore as an explicit tolerance. On cylindrical castings this relationship, rather than the individual dimensions, is what determines whether the part assembles.
- Send the drawing with material, quantity, quality standard and target delivery date.
- State the inspection class and the zones it applies to, rather than a general note.
- Confirm the packing requirement and the lifting equipment available at the destination.
Related Guides
Other Parts In This Range

Mechanical Wear and Conveying Components
Screws, flights and wear surfaces
View specifications
Ductile Iron Structural Brackets
Ductile iron support structures
View specifications
Disc Type Iron Castings
Flat discs, plates and covers
View specifications
Wheel and Transmission Components
Pulleys, wheels and drive iron parts
View specificationsCylinder and Structural Shell Components — Frequently Asked Questions
Can large cylindrical castings be supplied machined?
Yes. CNC machining and dimensional control are coordinated with the casting in the same supply chain.
What is the maximum weight for a cast iron part?
The cast iron business covers 0.2 kg to 2000 kg.
What do you need to prepare a quotation?
Drawings, material, quantity, quality standard and target delivery date.
Which inspection is included?
The inspection scope is agreed during drawing review. Better surface and dimensional accuracy for mid size batches.
Get A Quotation For Cylinder and Structural Shell Components
Send the drawing and the application. We will confirm the process route, the production base and the inspection scope before quoting.