A forged cylinder is a solid or bored cylindrical body - hydraulic cylinder tubes, sleeves, pressure cylinder blanks and heavy machinery bodies - forged and then bored rather than rolled and welded from plate, so there is no longitudinal seam.
Supply covers solid cylinders, hollow cylinders, oil cylinder forgings, pressure cylinder blanks and finish-machined cylinder parts. Dimensions are OD, ID, length and wall thickness from the drawing, with end allowance and bore condition agreed separately. Grades are carbon, low-temperature, stainless and alloy steels, or whatever the drawing specifies, against the ASTM or EN standard cited.
Straightness is what separates a usable long cylinder from scrap, and it has to be a stated tolerance rather than an assumption, because it also governs how much stock the bore needs. Heat treatment and a hardness range are agreed with the drawing. Inspection is UT, hardness, a dimensional report, the heat-treatment record, MTC 3.1 and marking.
Product family: Custom Forged Components
Forged cylinder RFQs are reviewed by drawing, OD, ID, length, material grade, wall thickness, machining allowance, heat treatment, inspection and export requirements.
| Scope and rating | |
|---|---|
| Cylinder geometry | Solid or hollow cylinders are reviewed by OD, ID, length, wall thickness, straightness and machining allowance. |
| Supplied variants | Solid forged cylindersHollow forged cylindersOil cylinder forgingsPressure cylinder blanksMachined cylinder forgingsCustom cylindrical forgings |
| Standards and materials | |
| Standards / drawings |
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| Material grades |
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| Geometry, tolerance and inspection | |
| Typical review basis | Oil cylinder forgings, pressure cylinder blanks, sleeves and heavy cylindrical components by drawing. |
| Critical dimensions | OD, ID, length, wall thickness, end allowance, bore condition and straightness. |
| Inspection depth | UT, hardness, dimensional report, heat-treatment record, MTC 3.1 and marking. |
| Reviewed before quotation |
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| Buying logic | |
| Best-fit RFQ | Best for solid cylinders, hollow cylinders, oil cylinder forgings and pressure cylinder blanks. |
| Buyer application | Hydraulic cylinders, pressure equipment, machinery bodies, sleeves and custom cylindrical blanks. |
Your standard, drawing revision and project specification govern.
Also known as
We confirm each step against your drawing or standard before we quote.
Material grade, heat number, certificate basis and substitution limits are checked against the Forged Cylinders drawing or standard before procurement is released.
The forging or ring-rolling route is selected around OD, ID, height, wall thickness, allowance and grain-flow expectations for the finished ring geometry.
Heat treatment is planned against ring section thickness, material grade, hardness or mechanical-test requirements and any low-temperature impact condition.
Rough machining opens OD, ID, end faces or datum bands so ovality, wall allowance and final ring machining risk can be checked early.
Final machining controls OD, ID, height, end-face parallelism, grooves or customer-specified profiles before dimensional inspection is issued.
Inspection covers OD, ID, height, wall thickness, dimensional report, MTC 3.1 and required UT, MT or PT records before shipment release.
Marking, packing and export documents are prepared by PO line item so the Forged Cylinders shipment can clear customs and be identified at site receiving.
List document requirements in the first RFQ; they affect price and schedule.
No. It is forged and then bored, rather than rolled and welded from plate, so there is no longitudinal seam.
Straightness is what separates a usable long cylinder from scrap, and it also governs how much stock the bore needs, so it has to be stated rather than assumed.
Yes. Supply covers solid and hollow cylinders, oil cylinder forgings, pressure cylinder blanks and finish-machined cylinder parts, with end allowance and bore condition agreed separately from OD, ID, length and wall thickness.
Email quote@bldforgedirect.com with standard, drawing, material, quantity and inspection requirements.