Processing / Coordinated to the order
Processing is a route,
not a menu.
Cutting, forging, machining, heat treatment and surface preparation are coordinated against the drawing, the material and the point at which the part must be ready for the next operation.
01 / Service scope
Six steps that must
agree with each other.
Each service is quoted as part of the ordered route. A cutting tolerance that ignores packing, or a treatment step that is added after machining, creates avoidable risk.
Cutting to length
Pipe, bar and shaft material cut to the required order length. Finished length, quantity and allowable tolerance should be stated together.
Forging coordination
For shaft products and heavier components, the forging route is discussed from grade, geometry, allowance and downstream machining requirement.
Machining support
Rough and finish machining requirements are read from the drawing. Datums, key dimensions, tolerances and surface requirements must be explicit.
Heat treatment
Quenching and tempering, normalizing or other agreed treatment is coordinated when the grade and application require it. The condition and test scope are stated in the order.
Surface preparation
Basic cleaning, peeling, bright surface or other preparation is matched to the product type and the condition required on arrival.
Export packing
Packing is planned around size, weight, transport method, handling and the protection needed for the agreed route.
02 / Route by product
The same service means
different work.
A cutting instruction for pipe is not the same as a machining instruction for a shaft. The table shows which processing questions belong to each product form.
| Product form | Processing questions | Information to send | What is checked |
|---|---|---|---|
| Steel pipes | Cut length, end preparation, surface, packing | Grade, OD, wall thickness, length, tolerance, destination | Dimensions, marks, bundle and packing |
| Round bars | Cut length, bright or peeled surface, rough machining, treatment | Grade, diameter, length, condition, quantity | Straightness, surface, cut length and bundle |
| Forged shafts | Forging allowance, rough or finish machining, treatment, specified testing | Drawing, grade, treatment, key dimensions, inspection points | Drawing dimensions, treatment records and agreed checks |
| Machined shafts | Turning or milling, tolerances, surface, treatment | Full drawing, datums, tolerance, finish, quantity | Key dimensions, finish, protection and packing |
| Custom steel components | Drawing-led machining and treatment | Drawing, material, process route, inspection requirement | Agreed drawing and inspection requirements |
No stock size range is implied by this page. Availability, tolerances and documentation are confirmed against the actual inquiry and agreed order.
03 / Drawing review
The drawing sets
the sequence.
For custom work, the review starts with the drawing. Dimensions that remain open, unclear tolerances and undefined treatment requirements are raised before work is quoted.
The output is not a promise that every feature can be produced in one pass. It is a shared route: material, process, inspection and packing, in an order that supports the drawing.
- Overall and sectional dimensions, including unfinished areas.
- Datums and critical tolerances — not only the nominal size.
- Surface condition and any treatment requirement.
- Inspection or hold points before the part moves on.
- Marking, protection and packing expectations.
- Any standard, test or third-party requirement.
04 / Checks in the route
Inspection does not wait
for the packing line.
Inspection points are placed where they can still affect the outcome. For processed parts, that means agreeing what is measured, when and by whom before production begins.
- 01Incoming material
Grade and document references checked against the ordered requirement.
- 02In-process dimensions
Key characteristics checked at the agreed stage, before later operations cover them.
- 03Treatment condition
Treatment records or hardness requirements reviewed within the agreed scope.
- 04Final visual and size
Surface, damage, marking and key dimensions checked before packing.
- 05Packing record
Packing method, bundle identity and shipment marks reviewed before dispatch.
05 / What to send
A quotable
processing inquiry.
The more precisely the route is described, the fewer assumptions are carried into the quotation. Send the following as one package; partial information can still start a review, but open points will be returned for confirmation.
- Product type and material grade or standard.
- Size, quantity and finished length or drawing dimensions.
- Required processing method and sequence.
- Tolerance, surface and heat-treatment requirements.
- Inspection, test or third-party requirements.
- Destination port, delivery terms and packing preference.
Procurement FAQ
Processing questions
Processing is only as reliable as the information attached to it. These answers set out what is confirmed before work is quoted.
Can you machine from my drawing?
Who confirms the tolerances?
Can heat treatment be included?
Is forging always required for shafts?
Can supply and processing be quoted together?
Can third-party inspection be arranged?
Send the drawing set.
Define the route.
Include the drawing, grade, quantity, required process, tolerance, treatment, inspection points and destination. Mark anything still open for discussion.