Part 1: Self Propelled Modular Transporters (SPMTs) – An Overview
I. What is an SPMT?
A Self-Propelled Modular Transporter (SPMT) is the ultimate solution for moving loads too large or heavy for standard trucks. This modular platform, built from interconnected axle lines and wheels, is indispensable in industries like energy, construction, and major infrastructure projects.
II. What is an MSPE?
An MSPE (Self-Propelled Electronic Module) is the fundamental building block of an SPMT—a single, independent, self-powered axle module. Multiple MSPEs are connected and synchronized to form a complete SPMT platform.
MSPE: An intelligent “building block” unit with its own power, steering, and control.
SPMT: The complete transport platform formed by combining multiple MSPEs.
III. Key Features of SPMTs:
Self-Propelled: Equipped with its own power pack, requiring no tractor.
Modular Design: Modules can be combined flexibly to achieve desired size and capacity.
Multi-Axle Steering: Each axle line steers independently for precise maneuvering.
High Load Capacity: Single axle line capacity can exceed 70 tons.
Flexible Movement: Capable of longitudinal, lateral, diagonal, and 360-degree rotation.
IV. Self Propelled Transporter Primary Applications:
Used to transport bridge sections, refinery modules, heavy machinery, ship blocks, aerospace components, tunnel segments, and other super-heavy and oversized cargo. Common in heavy construction, oil & gas, power, shipbuilding, aerospace, and major infrastructure projects.
V. Famous Self Propelled Modular Transporter Manufacturers in The World
1. Scheuerle
2. Enerpac
3. Faymonville
4. Goldhofer
5. Cometto
6. Mammoet
7. Scheuerle
8. Sarens
VI. Leading Chinese SPMT Manufacturers
Chinese manufacturers have become strong global competitors, leveraging high cost-effectiveness, rapid technological advancement, improving global service networks, and strong domestic market support. Among them, XCMG and CIMC are industry benchmarks, leading in product technology, project experience, and global competitiveness.
Part 2: SPMT Tires – The Critical Interface
SPMT tires are critical components bearing hundreds or thousands of tons. They are predominantly Tubeless Industrial Solid Port Tire, chosen for their extreme load capacity, safety, and durability.
I. Main Types of SPMT Tires
| Type | Characteristics | Primary Use Case |
|---|---|---|
| Industrial Solid Tires | Extreme load capacity, puncture-proof, maintenance-free; very stiff ride. | Ultra-heavy SPMTs, mega-load applications. |
| Industrial Pneumatic Bias Tires | Some cushioning; require maintenance (pressure, puncture risk). | Lighter loads or uneven surface conditions. |
| All-Steel Radial Tires | Durable, low rolling resistance/heat; suitable for highway use. | Scenarios requiring a balance of durability and road transport efficiency. |
Key Selection Criteria:
Solid Tires: For maximum load and absolute reliability.
Bias Pneumatic Tires: For cost-effectiveness and cushioning.
All-Steel Radials: For balanced durability and highway efficiency.
II. Major Brands & Example SPMT Tire Models
| Brand | Example Model(s) | Compatible Equipment / Notes |
|---|---|---|
| Continental | 355/65-15 24PR N TL IC 40 EXTRA DEEP | Scheuerle SPMTs |
| Dunlop | 355/65-15 Aircraft Tires | Cometto MSPEs |
| Forlander | 355/65-15 28PR SPMT Tires | Scheuerle, Goldhofer, Mammoet, etc. |
| Michelin | XTE2+ 215/75 R17.5 | Goldhofer Modular Trailers |
| Dunlop | 33.5×11.25-25 26PR | Cometto MSPE EVO Series (70t/axle line) |
| Forlander | 33.5×11.25-15 28PR/32PR Port Tires | Single tire load up to 17.5 tons |
| Double Coin | RT500 9.5R17.5 / 7.50R15 | All-Steel Special Trailer Tires |
| Goodyear | 245/70R17.5 2 KMAX T | Goldhofer THP/SL-S |
| Forlander | FR966 All-Steel Radial Trailer Tire Series | Sizes from 9.5R17.5 to 285/70R19.5 |
III. Forlander SPMT Tire Case Study
1. Forlander Brand 355/65-15 28PR SPMT Tires
This Forlander 355/65-15 28PR SPMT Tires are designed for heavy-duty Self-Propelled Modular Transporters (SPMT). With the feature of its high Load capacity and strong sidewall, Forlander SPMT Tires can be used in extreme duty working condition. Full range for Morello, Mammoet, Avanti, SCHEUERLE, Goldhofer modular trailers etc.
Application: Self-Propelled Modular Transporter (SPMT)
Ply rating: Commonly 28PR, indicating a very high load capacity and durability.
Benefits
- High loading capability
- High tire stability
- High damage resistance and excellent traction
2. Forlander 215/75R17.5 18PR FA388 for Goldhofer modular trailers
3. Forlander Brand 33.5×11.25-15 28PR 32 PR SIT01 Port Tire PRO TECH Tubeless Tyres
33.5×11.25-15 28PR SIT01 port tire with a single tire load capacity of 12.5 tons, 32PR with tire load capacity of 17.5 tons
Features:
- Cross ply construction
- Stiff sidewall and wide, flat tread
- Thick tread depth and lugged tread pattern
4. Forlander FR966 maximised load-carrying capacity combined with safety with sizes complete tire range.
Developed by Forlander S MULTI Technology
- Casing reinforced for higher load capacities or under more demanding conditions results in enhanced fuel efficiency and greater casing mileage potential.
- Evolving wider tread designs provide additional grip and enhanced mobility over the life of the tire.
- The full-width elastic protector ply helps protect the working plies from bruising and penetrations, minimizing downtime.
- Tyre Size: 9.5R17.5 18PR, 215/75R17.5 18PR, 225/80R17.5 18PR, 225/90R17.5 16PR, 235/75R17.5 18PR, 245/70R17.5 16/18PR, 245/70R19.5 16PR, 255/70R22.5 16PR, 265/70R19.5 18PR, 285/70 R 19.5, 275/70R22.5 18PR, 275/80R22.5 18PR
Summary
SPMTs represent the pinnacle of modern heavy logistics. Their core technologies—modularity, all-wheel drive/steering, and computer-synchronized control—solve the global challenge of moving super-heavy cargo. The specialized solid tires fitted to them are the vital foundation of this system, providing the unparalleled load capacity, safety, and reliability that enable these “steel giants” to operate with stability and precision.
