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Heavy-Duty Performance

50mm Bore
Shock Absorbers

The industry's largest-bore shock absorbers, engineered exclusively for armoured vehicles carrying B4–B7 ballistic protection. Where standard 30–35mm shocks fade under sustained military use, our 50mm Foam Cell units maintain consistent damping performance regardless of load or operational tempo.

Developed from prime mover technology and refined over 40 years of Australian field use — these shocks are the reason Tough Dog Armoured is trusted by defence agencies across 45+ countries.

50mm BoreFoam CellB4–B7 RatedAustralian Made
Tough Dog Armoured 50mm bore shock absorbers with Foam Cell technology
50mm
Bore Size
20mm
Rod Diameter
70mm
Outer Casing
Foam Cell
Technology
High-Temp
Fluid Type
Multi-Lip
Seals

Engineering

Advanced Technology Features

50mm Large Bore

The industry's largest bore diameter allows for increased fluid capacity and superior heat dissipation, preventing damping fade under sustained military and security use.

Multi-Lip Oil Seal

Precision-engineered sealing system prevents fluid loss and contamination across the full operating temperature range — critical for sustained operations in remote environments.

High-Temp Hydraulic Fluid

Formulated to remain stable under extreme heat generated by heavy, continuous cycling. Maintains consistent viscosity where standard fluids would fail, preserving damping force.

20mm Chrome Rod & 70mm Casing

Extra-diameter chrome piston rod and heavy-gauge outer casing deliver superior corrosion resistance and structural integrity under armour loads of 1,500–3,000+ kg.

Performance

Tough Dog vs. Standard Shocks

Specification
Tough Dog Armoured
Standard 4WD Shock
Bore Diameter
50mm
30–35mm
Fade Resistance
Foam Cell — Nil Fade
Prone to heat fade
Armour Load Rating
B4–B7 Certified
Factory GVM only
Fluid Type
High-Temp Hydraulic
Standard hydraulic
Rod Diameter
20mm Chrome
12–16mm
Run-Flat Compatible
✓ Yes
✗ No

The Case for Upgrading

Why Standard Shocks Fail on Armoured Vehicles

Standard 4WD shock absorbers are engineered for factory vehicle weights of 2,500–3,500 kg. Armoured vehicles carrying B6–B7 ballistic protection packages add 1,500–3,000 kg — often doubling or tripling the suspension load. Under this weight, standard shocks overheat within minutes of sustained use, causing hydraulic fade that eliminates damping control entirely.

Tough Dog Armoured 50mm bore shocks carry more than four times the fluid volume of a standard unit. Combined with Foam Cell technology and high-temperature hydraulic fluid, they maintain consistent damping force across the full operating temperature range — even under sustained convoy use in extreme environments.

Prevents suspension fade under sustained use
Maintains vehicle control at B6–B7 load levels
Compatible with run-flat tyre systems
Engineered for remote operations with no maintenance access
Australian-manufactured and field-tested since 1985
Supported by full engineering documentation

FAQ

Frequently Asked Questions

Learn More

Resources & Technical Guides

Get In Touch

Ready to Upgrade Your Suspension?

Contact our engineering team for load calculations, vehicle compatibility, and technical specifications for your armoured vehicle application.

Heavy-duty suspension systems engineered for armoured vehicles, military fleets and security transport. Australian made and tested since 1985.

40+
Years
45+
Countries
50mm
Bore

Making Tracks Since 1985

Service Areas

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Australian Made & Tested