E-4 (21.00-35)
- 3 sizes
- Bias OTR
E-4 is a bias OTR tyre designed for large self-dumping trucks operating in heavy-duty off-road environments such as quarries, mines, and construction sites. The tread pattern provides wear resistance, good grip on loose surfaces, and self-cleaning performance to maintain traction under continuous loading and unloading cycles.
What E-4 Is Built For
E-4 is a bias OTR tyre designed for large self-dumping trucks operating in heavy-duty off-road environments such as quarries, mines, and construction sites. The tread pattern provides wear resistance, good grip on loose surfaces, and self-cleaning performance to maintain traction under continuous loading and unloading cycles. It is available in one size, 21.00-35, across three ply ratings: 32, 36, and 40, with corresponding tread depths of 650 mm, 750 mm, and 825 mm. The tyre is built for high load capacity at low speeds, with performance data provided at 10 km/h and 50 km/h for each ply rating.
Manufacturer Feature Claims
- Available for large self-dumping trucks
- Wear resistance, good grip and self-cleaning performance
Key Benefits
- Wear resistance extends casing life in abrasive off-road conditions
- Good grip performance on loose, uneven terrain common in mining and quarry operations
- Self-cleaning tread pattern prevents mud and debris buildup during repeated loading cycles
- Three ply ratings (32, 36, 40) allow matching to axle load and duty without overspecifying
- Tread depth increases with ply rating, supporting longer service life under heavy load
Problems It Solves
- Frequent casing failure due to poor wear resistance on abrasive off-road surfaces
- Loss of traction from mud or debris clogging the tread in repeated loading cycles
- Mismatch between tyre ply rating and actual axle load, leading to premature failure or unnecessary cost
- Need for multiple tyre patterns across a fleet due to varying load and terrain conditions
- Lack of a single supplier for mixed OTR tyre containers with consistent documentation and warranty
Who It Is For
- Mining and quarry contractors buying tyres by the container for captive fleets
- Fleet operators managing large self-dumping trucks in off-road environments
- Distributors supplying OTR tyres to contractors in Asia, Africa, South America and the Middle East
- Importers seeking a single supplier for mixed OTR tyre containers with consistent performance
- Government tender buyers requiring durable, low-maintenance tyres for public works projects
Application Scenarios
- Large self-dumping trucks in quarries transporting rock or ore over ungraded haul roads
- Mining dump trucks operating on rough, uneven surfaces with frequent loading and unloading
- Construction site dump trucks moving material across muddy or gravelly terrain
- Fleets operating in remote areas where tyre replacement is infrequent and durability is critical
- Operations requiring a single tyre pattern across multiple dump trucks with varying load profiles
Technical Features
- Bias construction with reinforced casing for durability under heavy off-road loads
- Tread pattern designed for self-cleaning to maintain grip during continuous operation
- Tread depth increases with ply rating: 650 mm, 750 mm, and 825 mm for 32, 36, and 40 ply ratings
- Performance data provided at 10 km/h and 50 km/h for each ply rating and size
- Single size (21.00-35) with three ply ratings to match different load and duty requirements
Size Table and Specification
Manufacturer data for every size in this pattern. Check the standard rim against your wheel and the load against your axle plate before ordering.
- Tyre Type
- Bias OTR Tyre
- Application
- For large self-dumping trucks
- Size
- 21.00-35
- Ply Ratings
- 32, 36, 40
- Tread Depth
- 650 mm, 750 mm, 825 mm
- Load Capacity at 10 km/h
- 21200 kg, 23000 kg, 24300 kg
- Load Capacity at 50 km/h
- 12150 kg, 12850 kg, 14000 kg
- Section Width
- 570 mm
- Overall Diameter
- 2050 mm
- Speed Rating
- 42.0 km/h
- Tread Type
- TL (Tubeless)
- materials
- materials
All 3 Listed Sizes
| Size | Ply Rating | 10km/h | 50km/h | Tread Depth (mm) | Type TT TL | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 21.00-35 | 32 | 15.00/3.0 | 21200 | 650 | 12150 | 500 | 570 | 2050 | 42.0 | TL |
| 21.00-35 | 36 | 15.00/3.0 | 23000 | 750 | 12850 | 550 | 570 | 2050 | 42.0 | TL |
| 21.00-35 | 40 | 15.00/3.0 | 24300 | 825 | 14000 | 625 | 570 | 2050 | 42.0 | TL |
Materials and Construction
- Bias casing construction as supplied by the manufacturing plant
- Tread compound designed for wear resistance in abrasive off-road conditions
- Tread pattern geometry engineered for self-cleaning performance under repeated loading
From Size List to Loaded Container
Confirm the required ply rating and load condition (10 km/h or 50 km/h) against your vehicle's axle load and duty
We quote FOB or CIF based on your load port and confirm current plant availability
Production or stock allocation is confirmed with the plant before deposit is required
Container is loaded with mixed sizes and patterns if needed, insured, and shipped with full export documentation
Quality and After Sales
- Every tyre supplied carries a one year warranty against manufacturing defect
- Warranty claims are handled directly by us, not passed back to the plant
- Cargo transportation insurance is provided on every shipment
- Certificate of origin and marking compliance are confirmed against your import market before loading
Customisation Options
- Mixed container loading across sizes, patterns and brands to match your order book
- Certificate of origin issued to suit your import duty position
- Sidewall branding and private label subject to plant minimum order quantity
- Label, marking and packaging adjusted to the destination market requirement
Where This Pattern Wins and Where It Does Not
Compared With Radial OTR tyres
The bias construction of E-4 offers better durability in high-impact off-road environments but may have higher rolling resistance and lower speed capability
Compared With Lower ply rating tyres
A higher ply rating provides greater load capacity and casing strength, reducing the risk of casing failure under heavy dump truck duty
Compared With Tyres without self-cleaning tread
The E-4 tread pattern maintains grip by preventing debris buildup, which is critical in repeated loading cycles
Use Guide
- Match the ply rating to the actual axle load and operating conditions to avoid over- or under-specifying
- Check the load capacity at 10 km/h or 50 km/h against your vehicle's operating speed and load
- Inspect the tread for debris after each cycle in muddy or rocky terrain to maintain self-cleaning performance
- Rotate tyres between positions if irregular wear develops, especially on fleets with one-way loading patterns
- Use the full tread depth as a guide for retreadability; deeper tread allows for more retread cycles
E-4 Buying Questions
What is the minimum order quantity?
We load by full container. A 40HQ of 21.00-35 typically fills at container weight rather than volume, so the practical minimum is one container. Mixed loads across sizes and patterns are accepted.
What is the lead time?
It depends on whether the size and ply rating are in stock at the plant or need to be produced. We confirm current availability with the plant at the time of quotation.
Which sizes and ply ratings are available?
One size, 21.00-35, with three ply ratings: 32, 36, and 40. Tread depths are 650 mm, 750 mm, and 825 mm respectively.
Can you supply DOT or ECE marked tyres?
Marking requirements vary by destination. Tell us the import market and we confirm what marking the plant can supply on that size before you place the order.
What warranty do you give?
One year against manufacturing defect on all tyres we supply, with claims handled by us directly. Cargo transportation insurance is provided on the shipment itself.
Can you ship a mixed container with other patterns?
Yes. Most of our customers load one container across several patterns and sizes, which is the main reason to buy through us rather than from a single plant.
Is this tyre suitable for highway use?
The E-4 is designed for off-road duty at low speeds. It is not intended for highway use or high-speed operation.
Other Patterns in the Same Category
Where This Tyre Fits and How to Specify It
Construction and Quarry
Site work destroys tyres in ways highway rubber was never designed for: sidewall cuts on rebar and kerb, stones drilling through groove bottoms, and a…
Read the industry guideMining
A mine site measures a tyre in operating hours and tonne kilometres, not in months. What matters is heat build-up on the haul road, cut resistance on the…
Read the industry guideTBR vs TBB Choosing Radial or Bias Truck Tyres
Radial versus bias truck tyres, decided on road surface speed and whether a retread market exists
Read the guideOTR Tyre Codes E L G and What They Mean
What E-3, L-3, L-5 and the rest of the TRA service codes tell you about an OTR tyre
Read the guideHow to Read a Tyre Sidewall Marking
What 315/80R22.5 156/150K actually means, and the three checks to make on a size table before you order
Read the guideGet a Price on E-4
Send the sizes and quantities you need. We confirm plant availability and quote FOB or CIF against your load port, and it can share a container with any other pattern.