Overview
Custom 316L Piston Assemblies for Yogurt Filling Machines
ZSCNC supplies custom 316L pistons and related shaft components to approved drawings for yogurt and viscous-product filling equipment. Specify whether your RFQ covers individual machined parts or a matched set, and identify seals or purchased items separately so the quotation can define the supply scope.
Our Wuxi machining base focuses on CNC milling and turning. Current drawings, material and critical characteristics define the order.
Critical Drawing and Interface Requirements
Piston and cylinder fit
Specify piston diameter, mating bore, fit tolerances, measurement temperature and relevant operating conditions. The equipment designer defines the clearance.
Seal grooves and lands
Include groove depth, width, radii, seal-entry edges and the selected seal design. Machining follows the approved geometry rather than a universal groove tolerance.
Shaft interfaces and runout
Identify the datum axis, supported condition, measurement length, threads and connection features.
316L Material and Surface Finish
State the exact material grade, stock condition and any hardness requirements. Suitability for the product, cleaning chemicals, temperature and loading is assessed for the intended application. 316L is not an unconditional corrosion, hygiene or wear guarantee.
Specify surface texture, measurement locations and finishing allowance at sealing, sliding or contact areas. Grinding, passivation, electropolishing or other secondary processes need an agreed route and acceptance criteria before quotation.
Manufacturing and Inspection Scope
We review workholding, tool access, process sequence and inspection access before order acceptance. Achievable tolerances depend on material, geometry and the confirmed measurement method. Our base has no in-house 5-axis, EDM or wire-cutting equipment.
Inspection reports, material certificates, heat-number traceability and application-specific documents must be requested in the RFQ. Availability is confirmed for the selected stock and order. EN 10204 3.1 documents and regulatory or hygienic certifications are not included by default.
See our drawing-based quality inspection information. Confirm the required measurement method and report coverage with the order.
Assembly and Application Validation
Fill accuracy, leakage, seal life and smooth stroke motion depend on the complete assembly and operating process. No leak-free dosing, drip-free filling or automatic CIP/SIP compatibility is promised.
Replacement geometry and any material or finish change require customer approval. Related information: 316L filling valve bodies and filling-machine components.
Sample Approval and Repeat Orders for Filling Pistons
For a first order, agree the sample quantity, critical inspection points and approval process before releasing the production batch. Identify the mating cylinder and seal references, drawing revision and final finishing condition used for acceptance.
For repeat orders, reference the approved drawing and sample records. Highlight changes to the mating parts, seal design or surface treatment so the inspection scope can be reviewed before manufacture. If you need several piston and shaft part numbers together, provide a parts list with the quantity for each drawing.
Request a Drawing-Based Quote
- Current 2D drawing and 3D model with revision.
- Mating-interface information and critical datums.
- Material grade, surface finish and required documents.
- Inspection, edge condition, marking and packaging requirements.
- Trial quantity, production quantity per release and estimated annual demand, where known.
- Part numbers and quantities for any matched or multi-part set.
- Delivery destination and required dates for samples and production batches.
Use the Request a Quote form for an initial enquiry, or submit your piston drawings for quotation through our drawing-upload form. It accepts PDF, STEP and DWG files up to 5 MB per file; email info@zscncpack.com to arrange larger files or other formats. Include the part number and quantities with your message. Price and lead time follow the confirmed machining, finishing and inspection scope.
