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Engineered Hydraulic Specification

Piston-type gas-oil spring

Schwerll Industrial Fluid Power Equipment - Piston Type Gas Oil Spring
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🏆 ISO 9001:2015 ⚙️ ASME Sec. VIII 🇪🇺 PED / CE 🌐 EAC / CU-TR
Oil and gas spring

Piston-type gas-oil spring

Model / SKU: SCH-1014 | Quality: 100% FAT Inspected

At its core, the oil‑gas spring is a high‑performance vibration‑damping and load‑bearing solution designed for heavy‑load applications under harsh operating conditions. It integrates the elastic function of a conventional spring with the damping characteristics of a shock absorber, making it ideal for scenarios where standard suspension systems fall short or cannot deliver satisfactory performance.

To 207 MPa Working Pressure
0.1–1,500 L Volume Range
-40°C to +150°C Temp Tolerance
1.5× PN Proof Hydraulic Test

Direct Factory Technical Inquiry & Fast RFQ

Contact Schwerll engineering sales directly for custom volume sizing, pressure ratings, material compatibility and volume pricing.

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⏱️ < 4h Engineering Response 🧪 100% Hydro-Tested (1.5× PN) 🔒 Strict NDA Protection

Product Specifications & Engineering Data

Authoritative technical parameters, fluid media tolerances, and structural design standards.

📐 2D/3D CAD Models Available

The essence of an oil‑gas spring is “ High-performance vibration-damping and load-bearing solutions for heavy-duty applications under harsh operating conditions. It combines the elastic performance of a traditional spring with the damping characteristics of a shock absorber, making it ideal for applications where conventional suspensions fall short or cannot deliver optimal results.

By integrating piston accumulators with hydraulic cylinders into a single modular unit, SCHWERLL has developed high‑performance piston‑type gas‑oil springs that deliver exceptional reliability. This integrated design minimizes installation space and enhances compactness, significantly reducing both installation footprint and mounting loads in vehicle chassis, automotive braking systems, and aircraft braking systems. Piston‑type gas‑oil spring products are widely employed in heavy‑duty vehicles with payloads typically below 8 tonnes.

SCHWERLL leverages its world‑leading piston accumulator sealing technology and a fully integrated production line to manufacture high‑quality piston‑type hydraulic‑pneumatic spring products.

Piston-Type Gas-Oil Spring - Engineering Layout and Working Principle Diagram

Frequently Asked Questions

Direct technical answers from Schwerll fluid power application engineers regarding Piston-type gas-oil spring.

SCHWERLL piston-type gas-oil springs are qualified up to 207 MPa, leveraging world-leading piston accumulator sealing technology. The fully integrated production line ensures high reliability and maintenance-friendly service under extreme load cycles and harsh environments.

International Pressure Vessel Certifications

Every Schwerll accumulator is designed, inspected, and validated against international safety and quality standards.

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ISO 9001:2015

Complete Quality Management System certification across raw material testing, precision machining, honing, welding, and final FAT pressure testing.

⚙️

ASME Section VIII Div. 1

ASME U-stamp and National Board (NB) registration available for high-pressure piston series (up to 30,000 PSI / 207 MPa) for North American & offshore deployment.

🇪🇺

CE Pressure Equipment Directive

PED 2014/68/EU CE marking with Notified Body conformity declaration and 3.1 material test certificates for European Union export compliance.

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TSG 21 / GB Standards

Certified in compliance with China's TSG 21-2016 Special Equipment Safety Code and GB/T 20663-2017 national pressure vessel standards.

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Multi-National Registrations

Approved configurations for CU-TR/EAC (Eurasian Union), NR13 (Brazil), AS1210 (Australia), KOSHA (Korea), and DOSH (Malaysia).

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Third-Party Inspection (TPI)

Support for client-mandated witness testing by SGS, Bureau Veritas (BV), Lloyd's Register (LR), TÜV Rheinland, Intertek, or DNV.

Custom Engineering & Ordering Flow

01
Technical Parameter Submission

Provide system operating pressures (P1/P2/P0), effective gas volume, cycle frequency, hydraulic fluid type, and ambient temperature range.

02
Computerized Volume Calculation

Our engineering team performs adiabatic or isothermal gas calculation (incorporating real gas Z-factor compressibility for pressures >20 MPa).

03
Approval Drawing & Quotation

We issue general arrangement (GA) drawings, nozzle/flange connection details, and formal commercial terms within 24–48 hours.

04
Fabrication & FAT Testing

Deep hole honing (Ra ≤ 0.2 μm), ultrasonic testing (UT), magnetic particle inspection (MT), and 1.5× hydraulic proof pressure test.

05
Export Packing & Global Delivery

Solid wooden crating with desiccants, rust preventative oil, and pre-charged N2 blanket. Incoterms: FOB Tianjin/Shanghai, CIF, or DAP.

Standard Lead Time

Standard SKU2–4 Weeks
ASME / PED Certified6–8 Weeks
Custom Large Bore (>350mm)8–12 Weeks
Complete Accumulator StationProject-Specific
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