Axle Configuration and Payload Optimization for Fuel Tanker Exports to Kazakhstan and CIS Markets
Fuel tanker axle configuration for Kazakhstan/CIS: 3+1 lift axle, 1150mm fifth-wheel height, 60,000L payload under 10t/axle limit.
Introduction
Fuel tanker exports to Kazakhstan and the CIS require precise axle configuration to meet strict axle-load limits while maximizing payload. Kazakhstan mandates a maximum 10 tonnes per axle on public roads (Article 23 of the Road Traffic Code). A typical fixed 3-axle tanker at 60,000L fill (diesel density ~0.85 kg/L = 51,000 kg cargo) plus tare (approx. 8.5 tonnes) totals 59.5 tonnes, exceeding the 30-tonne limit for a 3-axle unit. TITAN Vehicle Co., Ltd solves this with a 3+1 lift axle design and a lowered fifth-wheel height of 1150mm, ensuring compliance and optimal payload.
Axle Configuration: 3+1 Lift Axle Design
TITAN's standard fuel tanker for CIS exports uses four axles: three fixed and one lift axle (self-steering). This configuration distributes the 59.5-tonne gross weight over four axles, each carrying under 15 tonnes. The lift axle is raised when empty to reduce tire wear and fuel consumption.
| Axle Type | Quantity | Load Capacity (tonnes per axle) | Total Load (tonnes) |
|---|---|---|---|
| Fixed axle | 3 | 15 | 45 |
| Lift axle | 1 | 15 | 15 |
| Total | 4 | 15 | 60 |
This design keeps each axle under 15 tonnes, but Kazakhstan's 10t/axle limit requires further optimization.
Fifth-Wheel Height: 1150mm for Payload Optimization
Standard fifth-wheel height is 1200-1300mm. TITAN lowers it to 1150mm (configurable per order) to reduce the trailer's center of gravity and increase payload capacity. This 50-150mm reduction allows for a larger tank volume (up to 60,000L) without exceeding height limits (Kazakhstan max 4.0m). The lower height also improves stability during cornering at 80 km/h (typical CIS highway speed).
Payload Calculations
- Tank volume: 60,000 liters (configurable per order)
- Cargo density: diesel 0.85 kg/L, gasoline 0.75 kg/L
- Maximum cargo weight: 60,000 L × 0.85 kg/L = 51,000 kg (diesel)
- Tare weight (TITAN tanker): 8,500 kg (with 3+1 axles, 1150mm fifth wheel)
- Gross weight: 51,000 kg + 8,500 kg = 59,500 kg
- Axle load (4 axles): 59,500 kg / 4 = 14,875 kg per axle (under 15t limit, but over 10t Kazakhstan limit)
To comply with Kazakhstan's 10t/axle limit, TITAN uses a 3+1 lift axle with a fifth-wheel height of 1150mm, but the gross weight must be reduced or a fifth axle added. Typical solutions: - Option A: Reduce payload to 40,000L (34,000 kg cargo) → gross 42,500 kg → 10.625t/axle (still over 10t) - Option B: Add a fifth axle (2 lift axles) → 5 axles → 59,500 kg / 5 = 11,900 kg/axle (still over 10t) - Option C: Use a 6-axle configuration (3 fixed + 3 lift) → 6 axles → 59,500 kg / 6 = 9,916 kg/axle (within limit)
TITAN recommends a 6-axle configuration for full 60,000L payload compliance in Kazakhstan. The 3+1 design described above is for other CIS countries with 15t/axle limits (e.g., Russia, Uzbekistan).
Comparison: Fixed 3-Axle vs. TITAN 3+1 Lift Axle
| Parameter | Fixed 3-Axle | TITAN 3+1 Lift Axle (for CIS) | TITAN 6-Axle (for Kazakhstan) |
|---|---|---|---|
| Number of axles | 3 | 4 | 6 |
| Max payload (diesel) | 30,000L (25,500 kg) | 60,000L (51,000 kg) | 60,000L (51,000 kg) |
| Axle load at full payload | 19,833 kg/axle | 14,875 kg/axle | 9,916 kg/axle |
| Compliance with 10t/axle (KZ) | No | No | Yes |
| Compliance with 15t/axle (CIS) | No | Yes | Yes |
| Fifth-wheel height | 1250mm | 1150mm | 1150mm |
| Tare weight | 7,500 kg | 8,500 kg | 10,500 kg |
| Recommended use | Local only | Russia, Uzbekistan, etc. | Kazakhstan, Kyrgyzstan |
Buyer FAQs
1. What is the maximum payload for a fuel tanker to Kazakhstan?
With TITAN's 6-axle configuration (3 fixed + 3 lift), you can carry 60,000 liters (51,000 kg diesel) while keeping each axle under 10 tonnes. The fifth-wheel height is 1150mm to maintain stability.
2. Why is fifth-wheel height important for CIS exports?
A lower fifth-wheel height (1150mm vs. standard 1250mm) reduces the trailer's center of gravity, allowing a larger tank volume without exceeding the 4.0m height limit. It also improves handling at 80 km/h speeds common on CIS highways.
3. Can I use a standard 3-axle tanker in Kazakhstan?
No. A 3-axle tanker at 60,000L fill exceeds the 10t/axle limit by 9.8 tonnes per axle, leading to fines up to $5,000 per weigh station violation (Kazakhstan Road Traffic Code). TITAN's 6-axle design is mandatory for compliance.
4. What is the tare weight of a TITAN fuel tanker for CIS?
Typical tare weight is 8,500 kg for a 3+1 lift axle configuration with 1150mm fifth wheel. For the 6-axle Kazakhstan version, tare is 10,500 kg.
5. How do I order a fuel tanker for my specific CIS country?
Contact TITAN via WhatsApp +86 152 7573 5188. We configure the axle count, fifth-wheel height, and tank volume based on your target country's axle-load limits and road regulations.
Proprietary Data Note
TITAN's 1150mm fifth-wheel height is 50-150mm lower than industry standard, enabling a 60,000L tank volume with a 4.0m overall height, while the 3+1 lift axle distributes load to 14,875 kg/axle—under the 15t limit for CIS countries but requiring 6 axles for Kazakhstan's 10t/axle limit.
TITAN's 1150mm fifth-wheel height is 50-150mm lower than industry standard, enabling a 60,000L tank volume with a 4.0m overall height, while the 3+1 lift axle distributes load to 14,875 kg/axle—under the 15t limit for CIS countries but requiring 6 axles for Kazakhstan's 10t/axle limit.
FAQ
What is the maximum payload for a fuel tanker to Kazakhstan?
With TITAN's 6-axle configuration (3 fixed + 3 lift), you can carry 60,000 liters (51,000 kg diesel) while keeping each axle under 10 tonnes. The fifth-wheel height is 1150mm to maintain stability.
Why is fifth-wheel height important for CIS exports?
A lower fifth-wheel height (1150mm vs. standard 1250mm) reduces the trailer's center of gravity, allowing a larger tank volume without exceeding the 4.0m height limit. It also improves handling at 80 km/h speeds common on CIS highways.
Can I use a standard 3-axle tanker in Kazakhstan?
No. A 3-axle tanker at 60,000L fill exceeds the 10t/axle limit by 9.8 tonnes per axle, leading to fines up to $5,000 per weigh station violation (Kazakhstan Road Traffic Code). TITAN's 6-axle design is mandatory for compliance.
What is the tare weight of a TITAN fuel tanker for CIS?
Typical tare weight is 8,500 kg for a 3+1 lift axle configuration with 1150mm fifth wheel. For the 6-axle Kazakhstan version, tare is 10,500 kg.
How do I order a fuel tanker for my specific CIS country?
Contact TITAN via WhatsApp +86 152 7573 5188. We configure the axle count, fifth-wheel height, and tank volume based on your target country's axle-load limits and road regulations.