Manufacturer of parts for the transportation sector: heavy-duty trucks, buses, and railroads – Precision bar turning
Given the technical and environmental requirements that equipment manufacturers must meet, we apply our expertise in machining and turning to the mobility sector.
Examples of our machining projects for the heavy-duty truck industry
Swivel pin in 42CD4+QT for heavy-duty truck transmissions
This SWIVEL PIN is used within a heavy-duty truck transmission, playing a crucial role in the reliability and precision of the internal mechanisms. It is designed to meet the stringent requirements of the road transport sector, and ensures stable operation even under heavy loads and harsh conditions.
It is precision turned from 42CD4+QT steel, a quenched and tempered alloy valued for its high mechanical strength, fatigue resistance, and ability to withstand repeated stresses in demanding environments. This part is produced on a single-spindle machine, then reworked in a secondary operation to achieve final tolerances, ensure concentricity, and guarantee the functional quality of the assembly.
Internal or inner piston in AlSi1MgMn for heavy-duty truck transmissions
This internal piston is a critical component of the heavy-duty truck transmission system, involved in the management and synchronization of mechanical movements subjected to significant loads. It directly contributes to the overall reliability of the assembly by ensuring smooth and consistent operation at the core of the mechanism.
The part is machined by single-spindle turning from AlSi1MgMn alloy, selected for its optimal balance of lightness and mechanical performance. It then undergoes hard anodizing to improve its resistance to wear and corrosion.
Assembled sleeve in 34CrNiMo6 +QT for heavy-duty truck engines
This assembled sleeve or cuff is machined from 34CrNiMo6 +QT alloy steel. It is a functional component of a heavy-duty truck engine, contributing to the guiding, securing, or synchronization of certain internal parts subjected to high mechanical stresses.
It is produced by multi-spindle turning, followed by a vibratory finishing operation to optimize the surface condition before seal installation. Laser marking ensures the traceability of the part.
Ring Ø10 – HPT10 in CuAl10Ni5Fe5 for heavy-duty truck transmissions
This ring is a critical component integrated into a heavy-duty truck transmission, where it guides and holds moving parts under to high loads. Its is to help reduce friction.
It is manufactured from CuAl10Ni5Fe5 alloy, a high-performance aluminum bronze known for its exceptional wear resistance, corrosion resistance, and ability to withstand high pressures and sliding speeds.
This ring is machined on a single-spindle lathe, followed by a honing operation to achieve controlled flatness and surface roughness. It is completed with vibratory finishing, which is designed to homogenize the surface finish and remove any residual micro-burrs.
Spacing ring in 16MC5 for heavy-duty truck transmissions
This spacingring is integrated into a heavy-duty truck transmission, where it ensures the functional clearances between various mechanical components are precisely maintained.
It is machined from 16MC5 steel, a low-alloy material valued for its good heat treatment response, wear resistance, and mechanical strength suitable for demanding environments.
This part is produced by single-spindle bar turning. A case-hardening heat treatment is then performed, followed by surface grinding to achieve the geometry and flatness specified in the technical specifications.
Assembled sleeve in Aluminum 2011 for heavy-duty truck transmissions
This assembled sleeve is integrated within a heavy-duty truck transmission system, where it supports, guides, and aligns components subjected to significant mechanical stress.
It is machined on a cam-type multi-spindle machine from a 2011 aluminum alloy. This alloy allows for precise and repeatable geometries.
This sleeve is then assembled to form a functional subassembly that meets the customer’s mechanical and dimensional requirements.
Gear shift shaft in 42CD4+QT for heavy-duty truck transmissions
The GEAR SHIFT SHAFT is an essential component of a heavy-duty truck transmission, where it ensures the precise transmission and guiding of movements related to gear shifting.
It is machined from 42CD4+QT steel, a quenched-and-tempered alloy known for its high mechanical strength, toughness, and ability to withstand high dynamic stresses
The GEAR SHIFT SHAFT is machined using single-spindle bar turning, then subjected to high-frequency hardening to selectively harden the functional areas under the greatest stress. It then undergoes through-feed grinding, an essential step to ensure the precision of the seating surfaces, concentricity, and fit quality required for it to operate correctly within the mechanical assembly.
Examples of our bar-turning projects for the railroad sector
Ø10 Ring – HPT10 in CW614N for railroad electrical connectors
This HPT10 ring is used within an electrical connector designed for the railroad sector, where it ensures the retention and alignment of various conductive components. Its function helps guarantee the reliability of the electrical contact and the stability of the assembly, even in environments subject to vibrations and continuous operational stresses.
It is machined from a CW614N copper alloy, a bar stock brass known for its excellent machinability, corrosion resistance, and mechanical properties suitable for electrical applications.
It is turned on a single-spindle machine, followed by a finishing sandblasting operation to achieve a uniform surface.
Piston guide in CW614N for railroad sector braking systems
This piston guide is integrated within a railroad braking system, where it ensures precise guidance of linear movements subjected to significant mechanical and vibrational stresses.
It is machined by single-spindle turning from CW614N copper alloy, a turning brass known for its excellent machinability, corrosion resistance, and dimensional stability. An additional CNC operation then takes place to achieve precision in the functional diameters, adherence to tight tolerances, and the quality of fit required for its guiding role.
