What This Part Is And Why It Is Made This Way
Vessel components in food machinery have to be cleanable as well as strong, which rules out the pockets and rough surfaces that a casual casting route leaves behind. Grade and surface finish are part of the specification, not a preference.
These parts are cast in stainless grades 1.4308, 1.4309 and 1.4340 and CNC machined, in weights from 9 kg to 800 kg.
What You Get From This Route
Food machinery stainless grades with chemical composition analysis on each melt.
Casting and CNC machining coordinated so the sealing and contact faces are finished together.
Weight range to 800 kg covers large vessel bodies in one piece.
Application Scenarios
- Food processing vessels and bowls
- Hygienic mixing and blending equipment
- Beverage and dairy processing components
- Pharmaceutical grade handling equipment
Who It Is For
- Food machinery manufacturers
- Hygienic equipment integrators
- Plants replacing corroded vessel components
Technical Features
- Material 1.4308 / 1.4309 / 1.4340
- Weight range 9 kg - 800 kg
- Casting plus CNC machining
- Chemical composition analysis on each melt
What Buyers Run Into Without This Specification
- A cheaper stainless grade is substituted and the part pits in service.
- Surface finish leaves pockets that fail a cleaning validation.
- No material certificate is available for a food contact part.
Published Material Weight And Process Data
Figures below are the published capability for high alloy parts. Part specific values — tolerance on individual features, finish, packing — are confirmed at drawing review and marked TBC until then.
| Food Machinery Material | 1.4308 / 1.4309 / 1.4340 |
|---|---|
| Food Machinery Weight | 9 kg - 800 kg |
| Grate Bar Material | 1.4777 / 1.4776 / 1.4823 / 1.4743 / LH26 / EN-GJL-200 + 3%Cr |
| Grate Bar Weight | Typical products 2 kg - 50 kg; some grate bars and liners around 10 kg - 50 kg |
| Biomass Material | 1.4777 / 1.4776 / 1.4823 / 1.4855 |
| Working Temperature | Typical maximum around 1050 °C - 1150 °C depending on material and duty |
| Process | Shell moulding, lost wax and lost foam casting, plus CNC machining |
| Tolerance | Shell moulding normally CT9-10; lost wax normally CT8; surface roughness about Ra 12.5 |
| 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
- Inspection — Dimensions, flatness, assembly clearance, 3D scanning, RT, PT, hardness, chemical composition and tensile testing.
- Material Control — Chemical analysis on each melt, sampling from the product body and third party testing for special elements.
- Heat Treatment — Rotors are annealed to 20-35 HRC before machining, then quenched at about 1020 °C to 59-63 HRC.
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
State the surface finish requirement for contact faces and whether a cleaning validation applies. That requirement drives the casting route and the machining allowance, and it is much cheaper to plan than to polish out later.
- 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
Rotating and Drive Components
Stainless shafts and drive parts for hygienic equipment
View specifications
Assembled Machinery Components
Multi part stainless assemblies
View specifications
Precision Machined Structural Parts
Close tolerance stainless structures
View specifications
Typical Grate Bar Castings
Heat resistant bars for incineration grates
View specificationsStainless Steel Vessel Components — Frequently Asked Questions
Which stainless grades are standard for food machinery parts?
1.4308, 1.4309 and 1.4340 are used in this business. The grade is confirmed against the customer drawing.
What is the weight range for these components?
Food machinery components are supplied from 9 kg to 800 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. Rotors are annealed to 20-35 HRC before machining, then quenched at about 1020 °C to 59-63 HRC.
Get A Quotation For Stainless Steel Vessel Components
Send the drawing and the application. We will confirm the process route, the production base and the inspection scope before quoting.