Opis
Products / Torsion springs
Torsion springs
Working under torsional load with extended legs, used in mechanisms requiring return torque – locks, handles, flaps and gates.
Technical specification
Applications
- Door and flap hinges – handles, self-closers, boot lids, machine covers.
- Furniture mechanisms – chair backs, reclining sofas, soft-close hinges.
- Automotive – pedals, seat systems, boot lids, control elements, as well as some suspension systems.
- Household appliances – washing machines, dishwashers, vacuum cleaners; controlled raising and lowering of elements.
- Hand and power tools – pruners, drills, lever return mechanisms.
- Precision mechanisms – clocks, electronic devices, clips, fasteners, mousetraps.
- Agricultural and industrial machines – levers, working arms, control systems.
- Aviation and control systems – precision control systems.
Benefits
- Tailored to your individual project
- Manufacturing cost optimisation
- Fast roll-out to serial production
- Engineering support during design phase
Related services
Frequently asked questions
How do I choose the right solution for my application?
Contact our engineering department – we will help you select product type, material and finish for your specific use case. Backed by 50 years of experience.
How can I optimise the manufacturing cost?
We optimise the design for serial production (material choice, geometric parameters, finishing technology). Often we cut cost by 15-30% without losing functional parameters.
How do I move from prototype to serial production?
Prototyping at PSI runs smoothly and transparently. After prototype approval we roll out the series in 2-3 weeks with full quality control and batch traceability.
How can we shorten lead time without losing quality?
We have our own CNC machine park, tool shop and quality control lab. Everything under one roof shortens response time to design changes.
Need a quote?
Send us a technical drawing, sample or project description – we will respond within 48 hours with a manufacturing proposal.
How we work.
6 simple steps – from your first message to the finished product in your warehouse. Average time: 2-6 weeks depending on complexity.
Inquiry
You send drawings, parameters or describe your situation. We respond within 48 hours.
Technical analysis
Our engineers verify feasibility, select materials and propose optimal technology.
Quote
You receive a complete offer: commercial terms, timeline, technical feasibility conditions.
Prototype
We produce samples for validation – tests, dimensional control, fatigue cycles.
Series production
Manufacturing acc. to ISO 9001 / IATF 16949 with full traceability and 3.1 certificates.
Quality and delivery
Final QC, packaging acc. to your requirements, on-time delivery to any country worldwide.
Production in numbers.
Over 75 years of experience, modern CNC technology, certified processes – we deliver components for the most demanding industries.
Awards.
We invest in quality – certified by the most demanding standards.
Send an inquiry.
Our engineering team will help you choose the right springs, materials and process manufacturing. We respond within 48 hours.
- 📞+48 25 644 58 00
- ✉office@psi-sps.com.pl
- 📍Brzeska 72, 08-110 Siedlce
- 🕗Mon-Fri: 7:00-15:00
Quick inquiry
Send the form – our engineers will get back to you within 48h.




