Roadheader AM 105 – machine overview
The AM 105 roadheader is a machine that has been setting standards in the excavation of roadways and chamber workings in mines around the world for many years. This model performs reliably even in the most demanding underground mining conditions. The AM 105 is a solution for operators who expect high reliability, strong cutting performance, and the ability to work across a wide range of geological conditions.
See technical specifications
Operational capabilities
The AM 105 roadheader stands out among other mining machines due to its impressive cutting capabilities. It is designed for operation in diverse geological environments and is capable of effectively cutting rock with a uniaxial compressive strength of up to 160 MPa.
Thanks to a specially engineered cutting system and head stabilization mechanism, this roadheader performs efficiently even in difficult rock formations. In the advanced variant designated as ATM-105IC, the machine is capable of cutting anhydrite deposits with compressive strength reaching up to 230 MPa, representing a significant technological advancement compared to earlier models and competing solutions available on the market.
Where is the AM 105 roadheader used?
The AM 105 roadheader is a versatile machine used in both mining and civil engineering applications. In coal mines, it is particularly effective for driving preparatory roadways.
It is also successfully employed in rock salt and potash mines, where it is used for the excavation of chambers and access tunnels. Owing to its robust design and ability to operate in varied geological conditions, the AM 105 is also widely used for the construction of infrastructure tunnels.
Over time, the AM 105 has undergone continuous development. Today, its design lineage is continued by the MR 620 model.
Our offer
We offer comprehensive repair and revamping services for machinery used in the mining industry, especially for roadheaders. We provide professional servicing, regeneration of components and innovative technical solutions under our special programme. Feel free to check out our offer
AM 105 roadheader – Technical specifications
Various versions of the AM 105 roadheader are available on the market. Below is the technical specification for a typical configuration of the machine.
| Parameter | Value |
|---|---|
| Total length | approx. 12000 mm |
| Total operating height | 2560 mm |
| Width (travel mechanism) | 3050 mm |
| Total weight | approx. 120 t |
| Unit ground pressure | 0.17 MPa |
| Power supply | |
| Supply voltage | 1000 V, 50 Hz |
| Cutting head motor power | 300 kW |
| Total installed power | 478 kW |
| Cutting parameters | |
| Maximum cutting cross-section from a single setup | 50/41 m² |
| Maximum cutting height | 5400–5900 mm |
| Maximum cutting width | 7900/8900 mm |
| Cutting speed | 1.4 m/s |
| Type of cutting head | 105-GW-57 (front cutting head) |
| Travel speed, variable | 0–3.5 m/min |
| Conveyor speed | 0.8 m/s |
| Cutting head peripheral speed | 1.4 m/s |
| Cutting head feed speed | 0.18–0.2 m/s |
| Tractive force of each crawler track | 460 kN |
| Cutting boom force during lifting | 250 kN |
| Cutting boom force during lowering | 400 kN |
| Cutting boom force in horizontal movement | 93 kN |
| Maximum operating pressure in the hydraulic system | 250 bar |
| Versatility of applications
The AM 105 is a universal machine suitable for use in coal mines as well as in rock salt, potash, and anhydrite mines. Its design allows the machine to be adapted to various roadway cross-sections and the specific technological requirements of a given mining operation. |
Modular design
The machine has been designed with a modular layout, which significantly facilitates transport in sections to the underground workplace, as well as quick assembly and disassembly. The modular structure allows for efficient replacement or repair of key components without long production downtime. |
| High cutting performance and efficiency
A specially designed cutting system with reduced cutting speed enables efficient excavation in rock formations with very high strength. The roadheader achieves high productivity while simultaneously reducing wear of cutting tools. |
Advanced design and maneuverability
The AM 105 roadheader features a compact design that ensures good maneuverability when operating in roadways with medium and large cross-sections. Thanks to its well-thought-out structure, the machine can work effectively in demanding spatial conditions. |
- Pivoting chain conveyor.
- Water spraying system.
- Roof support lifting device.
- Working platforms.
- Turntable height extension.
- Loading table extension.
- Dust extraction system ducts.
- Special tools for assembly and disassembly.
- ABSE control console.
- ABSE (drilling and bolting unit).
Spare Parts, Repairs and Upgrades for the AM-105 Roadheader
Minostar specializes in supplying spare parts for AM-105 roadheaders that are fully compatible with the machine’s design and can directly replace components used in its original configuration. The components we provide are developed based on a detailed analysis of the structure and technical parameters of the AM-105 roadheader, ensuring full dimensional and installation compatibility while often offering greater durability and improved resistance to heavy-duty underground operation.
Our product range includes, among others:
- components of the AM-105 cutting unit (cutting heads, pick holders, tangential-rotary cutting picks, cutting unit gearboxes),
- components of the cutting boom and cutting unit slewing mechanism,
- parts of the muck loading system (loading tables, loading units, gathering arms),
- components of scraper conveyors used in AM-105 roadheaders,
- components of the travel system and crawler undercarriage,
- parts of the AM-105 hydraulic system (hydraulic pumps, control valves, hydraulic cylinders, valves and hydraulic hoses),
- components of the electrical system and control systems.
Thanks to the wide availability of components, failures can be resolved quickly and the machine can maintain high technical efficiency during operation at the tunnel face. Minostar also carries out repairs, rebuilds and upgrades of AM-105 roadheaders.
The scope of work may include both refurbishment of selected assemblies and complete reconstruction of key machine components – including the cutting unit, drive systems, hydraulics and the roadheader frame structure. In many cases, modernization solutions can also be implemented to improve machine reliability and operational performance.
Roadheader AM 105 – price
The purchase cost of the AM 105 roadheader depends on its technical condition, the scope of refurbishment performed, the level of modernization, and the available optional equipment.
Refurbishment carried out directly by the original manufacturer can significantly exceed the planned budget; therefore, it is worth consulting with us. Together, we will define your requirements and, based on that, propose the most effective solutions — tailored to your expectations and aligned with your budget. Contact us today to learn more.
Comprehensive support
If you own an AM 105 roadheader and reliability is your priority, we invite you to explore our refurbishment and modernization services for roadheaders. By applying modern technologies and durable materials, we are able not only to restore the machine to factory condition but also to improve its performance beyond the original parameters.
As part of the Minostar RESTART program, we can further extend the operational capabilities of the roadheader beyond the scope originally specified by the manufacturer in the technical documentation. We encourage you to familiarize yourself with our comprehensive range of mining machinery refurbishment services, including roadheaders.
Minostar – Comprehensive Service for AM-105 Roadheaders
Are you looking for a partner who can take care of your AM 105 roadheader from A to Z? Minostar is a team of experienced specialists who have been focusing for years on overhauls, modernizations, and adapting machines to specific operating conditions. Thanks to our own technological solutions, we are able to effectively reduce downtime and minimize operational losses for your company.
Choosing to work with us means gaining a reliable machine and solutions that are difficult to find elsewhere. Feel free to contact us and discover our offer!
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Design and main components
Cutting unit
The cutting unit of the AM 105 roadheader consists of an SG400/L gearbox and a 105-GW-87 cutting head, equipped with two assemblies of 87 rotary cutting picks each, mounted in holders using retaining rings. The cutting head has a diameter of 1290 mm and operates at a cutting speed of 1.4 m/s, allowing effective excavation even in hard rock with compressive strength of up to 160 MPa.
The SG400 gearbox is a four-stage spur–bevel–planetary mechanism with a compact design, directly coupled to the motor. With a gear ratio of 73.58, the torque increases from 1950 Nm at the input to 140.6 kNm at the output at only 20 rpm.
The gearbox also allows adjustment of rotational speed by selecting the appropriate gear stage in the spur gear section.
Slewing mechanism (turntable)
The slewing mechanism of the AM 105 roadheader enables precise control of the cutting boom in both horizontal and vertical planes. The use of a plain bearing ensures smooth, vibration-free operation, even under difficult operating conditions. Horizontal movement is achieved by two hydraulic cylinders working in conjunction with racks and a ring gear, with a maximum slewing angle of approximately 37° to the left or right. Vertical deflection reaches approximately 70° and is hydraulically actuated by cylinders mounted at the base of the boom.
Loader and material handling system of the AM 105
The AM 105 roadheader is equipped with a loading table of adjustable width — standardly from 5200 to 5900 mm, with the option to extend it up to 7200 mm. The excavated material is collected by gathering arms and transported by a scraper chain conveyor to downstream haulage equipment. The entire system is driven by a gearbox that synchronizes the operation of the gathering arms with the movement of the chain.
Control system
The roadheader is equipped with a modern ICACUTROCK control system, which enables precise monitoring and control of operating parameters. The use of an electrohydraulic cutting head stabilization system increases safety and cutting precision, even in the most demanding operating conditions.
Why us?
12 years of experience
Over a decade of activity, we have acquired knowledge and practical skills that allow us to successfully implement even the most complex projects.
An experienced team
Qualified engineers, mechanics and specialists with many years of experience in the mining industry who are constantly improving their competences.
Comprehensive offer
We offer a wide range of machines, parts and services. We provide support at every stage of the equipment life cycle.
Global reach
We deliver our solutions to customers from all corners of the world, gaining valuable experience in many demanding environments.
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