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Buy Тандемные in stock in Saint Petersburg.

Why customers choose tandem gas springs from VST

Quality control and certification

Certified to ISO 9001 and ISO/TS 16949 quality management — with continuous improvement focused on defect prevention and reducing variation and scrap across the supply chain.

Geometric parameter accuracyGeometric parameter accuracy
Corrosion testingCorrosion testing
Three-stage inspectionThree-stage inspection
Wear resistance controlWear resistance control
Low-temperature testingLow-temperature testing
High-temperature testingHigh-temperature testing

Geometric parameter accuracy

Rod Ø, cylinder Ø, stroke and length are controlled within batch tolerances so units fit mounts and mechanisms consistently.

Corrosion testing

Salt spray and humidity tests confirm rod and body coating resistance in aggressive environments.

Three-stage inspection

Incoming material control, in-process checks and final acceptance of every batch before shipment.

Wear resistance control

Cycle tests and seal checks reduce the risk of leaks and sticking during long-term use.

Low-temperature testing

Performance and force checks at sub-zero temperatures for outdoor and unheated applications.

High-temperature testing

Leak tightness and specs at elevated temperatures — for engine bays, industrial equipment and hot climates.

Production quality metrics

In-house defect rate
1 : > 1,000,000
Field defect rate
1 : > 998,000
Pre-shipment inspection
100%
On-time delivery
100%
Claims
< 1%
Customer satisfaction
> 99%
ISO 9001 certificate — TPK Vesta
ISO/TS 16949 certificate — TPK Vesta

Precision production and inspection algorithms

Every VST production step — from tube prep to end-fitting lubrication — follows a digital parameter profile. Automated test rigs verify force, rod stroke and leak tightness; deviations are logged per batch. That reduces spread between units and makes catalog-based replacement selection more predictable.

  1. Incoming inspection

    Raw materials

    • Geometry inspection
    • Corrosion testing

    Seals

    • Geometry inspection
    • Wear control
    • Temperature testing

    Components

    • Geometry inspection
    • Corrosion testing

  2. Full production cycle

    • Geometry inspection

  3. Control assembly

    • Geometry inspection

  4. Gas filling

    • Three-stage inspection

  5. Cleaning and coating

    • Geometry inspection
    • Three-stage inspection

  6. Warehousing

    • Three-stage inspection

Tandem gas springs combine two working chambers for higher force and synchronized stroke on heavy lids and wide panels.

Design benefits

Two cylinders work together, distributing load and reducing twist on long panels. Pair installation requires matched force and geometry.

Applications

  • Heavy cargo bay and container lids
  • Wide industrial cabinet fronts
  • Agricultural hoods
  • Special vehicles

Selecting a tandem pair

Calculate total force and split between two mount points. Ensure symmetric installation and equal extended length. Match rod diameter, tube diameter, stroke and force in catalog.

VST tandem springs

TPK Vesta produces tandem springs for industry and special equipment.

In stock

9 tandem items in category.

Frequently asked questions

Must both springs be identical?

Usually yes — matched pair for even motion.

Tandem vs two separate springs?

Tandem units are internally linked for synchronized stroke and higher force in compact form.

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