| Applicable Cylinder Standards |
Compliance with recognized hydraulic-cylinder dimensional and performance standards |
Product range clearly aligned with ISO 6020/2 for medium-duty cylinders at 160 bar or ISO 6022 for heavy-duty cylinders at 250 bar, where applicable |
Declaration of conformity, technical drawings, standard references, and product datasheets |
12% |
| Pressure-Rating Transparency |
Rated pressure, proof-test pressure, burst-pressure basis, and duty cycle |
All pressure limits are stated separately; ratings are supported by calculations and test records rather than a single general maximum-pressure claim |
Pressure-rating chart, proof-test procedure, test certificates, and application-specific confirmation |
12% |
| Dimensional and Mounting Accuracy |
Bore, rod diameter, stroke, mounting style, tolerances, and retracted length |
Controlled dimensional drawings are issued before production, with tolerances and mounting interfaces defined for interchangeability |
Approved engineering drawing, inspection plan, first-article report, and dimensional inspection record |
10% |
| Material Traceability |
Traceability of tube, piston rod, piston, gland, and weld materials |
Critical pressure-containing and load-bearing materials can be traced to a heat or batch number throughout production |
Material certificates, normally EN 10204 type 3.1 when specified, purchase records, and batch labels |
10% |
| Rod and Surface Protection |
Rod surface hardness, coating or plating, corrosion resistance, and finish |
Rod treatment is selected for the environment and documented with coating thickness, hardness, surface-finish, or corrosion-test data where required |
Surface-treatment specification, hardness report, coating certificate, and corrosion-test report when applicable |
8% |
| Seal and Fluid Compatibility |
Seal material, hydraulic-fluid compatibility, temperature range, and contamination sensitivity |
Seal compounds are identified by material type and validated for the specified fluid, pressure, speed, and operating-temperature range |
Seal datasheets, compatibility charts, temperature limits, and recommended-fluid documentation |
10% |
| Factory Testing and Acceptance |
Leakage, pressure, stroke, cushioning, and functional testing before shipment |
Every cylinder or an agreed sampling plan is tested against documented acceptance criteria; ISO 10100 is used as a reference where applicable |
Factory acceptance-test procedure, test report, serial-number linkage, and nonconformance records |
10% |
| Quality Management System |
Formal quality controls, corrective action, calibration, and internal auditing |
Current ISO 9001 certification or an equivalent independently audited quality system covering the relevant manufacturing site |
Valid certificate, certification scope, audit body, calibration records, and corrective-action procedure |
8% |
| Engineering and Customization Capability |
Ability to adapt stroke, mounting, ports, cushioning, sensors, seals, and coatings |
Supplier can provide controlled engineering revisions, application review, prototype approval, and documented design-change management |
Application questionnaire, engineering-change process, prototype drawings, and sample approval records |
8% |
| Delivery and Supply Continuity |
Quoted lead time, on-time delivery, production capacity, and critical-component availability |
Lead time is stated by configuration, delivery performance is tracked, and continuity plans exist for seals, steel, machining, and outsourced processes |
Recent delivery-performance data, capacity statement, safety-stock policy, and business-continuity plan |
6% |
| Warranty and Technical Support |
Warranty period, response time, root-cause analysis, and spare-parts support |
Written warranty terms and a defined process for failure analysis, replacement decisions, field support, and spare-seal availability |
Warranty document, service-level commitment, failure-analysis template, and spare-parts list |
4% |
| Total Cost of Ownership |
Purchase price, freight, installation, maintenance, seal replacement, and expected service life |
Supplier compares lifecycle cost rather than quoting only the lowest purchase price; assumptions are documented and comparable |
Itemized quotation, maintenance schedule, expected-life assumptions, and total-cost comparison |
2% |