Quality & Certifications
Standards We Build To
Stavalk operates a documented quality system across CE, ISO 9001:2015, ISO 14001 and RoHS — backed by a 7-stage inspection flow, controlled documents and third-party testing.
At a Glance
Five Locked Quality Baselines
Every order is produced against the same five agreed baselines.
Material Grade
HT200/HT250 gray cast iron and 45# forged steel verified by spectrometer before machining.
Jaw Hardness
GCr15/Cr12MoV jaws oil-quenched and tempered to 58–62 HRC, verified by Rockwell.
Dimensional Accuracy
Critical dimensions verified by CMM and calipers against the approved drawing.
Coating Durability
Spray, powder-coat and Parkerizing finishes salt-spray tested for 48+ hours.
Performance Tests
Clamping force, swivel torque, cycle life and safety checked per order.
Tests & Procedures
The checks behind every Stavalk bench vise.
Clamping Force Test
Confirms the screw and jaws hold the rated work load without slip or deflection.
Jaw Hardness Test
Rockwell testing verifies 58–62 HRC across the hardened jaw surface.
Swivel Torque Test
Verifies the base rotates and locks smoothly to the specified torque.
Cycle Life Test
10,000+ open/close cycles confirm the screw and slide wear life.
Salt-Spray Test
48+ hour exposure confirms coating and corrosion resistance.
Safety Compliance
Designed to CE per EN ISO 12100 and MD 2006/42/EC.
7-Stage Inspection Flow
A documented, per-order quality flow with records at every gate.
Incoming Material
Raw gray cast iron and steel checked against material certificates.
- Grade and certificate of conformity verified
- Spectrometer chemistry check on gray cast iron lots
- Inspection object
- Incoming material lots
- Inspection method
- Certificate review + spectrometer
- Acceptance criteria
- HT200/HT250 / 45# per spec
- Record output
- Material intake record
Casting Inspection
Cast bodies checked for defects, dimensions and soundness.
- Visual and dimensional check of cast bodies
- Defect screening for porosity and cracks
- Inspection object
- Cast bodies
- Inspection method
- Visual + gauge inspection
- Acceptance criteria
- No structural defects; dims per drawing
- Record output
- Casting lot record
Machining Inspection
Jaw faces, spindles and bases verified after CNC machining.
- Critical dimensions measured with CMM/calipers
- Surface finish and fit checked
- Inspection object
- Machined parts
- Inspection method
- CMM + caliper metrology
- Acceptance criteria
- Within drawing tolerance
- Record output
- Machining inspection record
Heat Treatment
Jaw hardness verified after oil-quench and tempering.
- Rockwell hardness on hardened jaw surface
- Batch process parameters logged
- Inspection object
- Hardened jaws
- Inspection method
- Rockwell hardness test
- Acceptance criteria
- 58–62 HRC
- Record output
- Heat treatment record
Surface Coating
Coating adhesion and durability checked.
- Coating thickness and appearance
- Salt-spray sampling for corrosion resistance
- Inspection object
- Coated bodies and jaws
- Inspection method
- Thickness gauge + salt-spray
- Acceptance criteria
- 48h+ no failure
- Record output
- Coating inspection record
Assembly & Functional Test
Assembled vises run through functional and performance tests.
- Clamping force and swivel torque
- Open/close cycle test
- Inspection object
- Assembled vises
- Inspection method
- Functional bench test
- Acceptance criteria
- Meets rated performance
- Record output
- Functional test record
Final Inspection & Packing
Finished vises inspected, packed and readied for shipment.
- Cosmetic and completeness check
- Packing, marking and paperwork verified
- Inspection object
- Finished vises
- Inspection method
- Final QC checklist
- Acceptance criteria
- Ready for FOB Qingdao
- Record output
- Final inspection & packing list
Quality System Map
The four standards that structure our factory quality system.
CE — EN ISO 12100
Machinery safety design and risk reduction across the product range.
MD 2006/42/EC
Machinery Directive compliance for safety in the EU market.
ISO 9001:2015
Quality management system governing our whole production process.
ISO 14001 & RoHS
Environmental management and restricted substances compliance.
Documentation & Traceability
Controlled documents and anonymized record samples available to buyers.
Controlled Documents
All drawings, specs and inspection records are version-controlled and traceable.
Traceability
Batch records link raw material lots through every QC gate to the finished order.
Third-Party
SGS, TÜV, BV and Intertek inspections available before shipping.
Controlled Document Register
Version-controlled documents managed across the quality system.
00 – Quality Manual
Describes the scope and policy of the factory quality system.
01 – Material Specs
Gray cast iron and steel grades and acceptance limits.
03 – Drawing Control
Version-controlled product drawings and specifications.
05 – Inspection Plans
Per-order 7-stage inspection plans and checklists.
08 – Test Methods
Standard procedures for hardness, torque, cycle and salt-spray tests.
12 – Traceability Records
Batch traceability linking material to finished product.
Traceability Matrix
How a product stays traceable from raw material to shipment.
Material Lot
Raw material certificates and heat numbers recorded on intake.
Casting Batch
Spectrometer results and cast numbers logged per batch.
Process Gates
Machining, heat treatment and coating records per batch.
Finished Serial
Anonymized records tie every gate to the finished order.
Non-Conformance Control
How defects are caught, contained and corrected.
Detection
Defects found at any QC gate are flagged and quarantined.
Containment
Affected batch isolated and traced to materials and processes.
Disposition
Rework, repair or rejection decided by inspection and the buyer.
Corrective Action
Root cause and corrective action prevent recurrence on future orders.
Third-Party & Buyer Inspection
Independent verification available at every stage.
Pre-Shipment
SGS, TÜV, BV or Intertek inspection before FOB shipment.
In-Process
Buyer or third-party at key QC gates during production.
Lab Testing
Independent lab verification of hardness, torque and coating.
Report Delivery
Inspection reports delivered with the shipment documents.
Certifications at a Glance
Stavalk produces bench vises in compliance with CE (EN ISO 12100 and MD 2006/42/EC), ISO 9001:2015, ISO 14001 and RoHS. The quality system is documented, measured and auditable — from material intake through a 7-stage inspection flow to third-party inspection and FOB Qingdao shipment.
Scanned certificates with scope are available on request before order, and buyers can arrange SGS, TÜV, BV or Intertek inspection at the factory before shipping.
FAQs
Which standards do Stavalk bench vises meet?+
CE (EN ISO 12100, MD 2006/42/EC), ISO 9001:2015, ISO 14001 and RoHS.
What hardness are the jaws?+
GCr15/Cr12MoV jaws are oil-quenched and tempered to 58–62 HRC.
Can I arrange third-party inspection?+
Yes — SGS, TÜV, BV or Intertek, arranged by you or us, at the factory before shipment.
Can I see quality records?+
Buyers with signed agreements can request anonymized traceability and QC records per order.
Evidence & Verification
Our quality and certification claims are supported by verifiable factory evidence:
Ask for certificates or a factory audit
Request scanned certificates, arrange an inspection, or plan a visit to the Stavalk factory in Qingdao, China.