Special products

Control levers, telescopic rods and welded metal structures for industrial vehicles

A range of control levers, telescopic rods and welded metal structures

Under our special products category, CORAM operates as control levers manufacturers and producer of telescopic rods and welded metal structures for trucks, agricultural tractors and earthmoving machines.

All components are manufactured to the reference standards for product design and validation, and can be customised on request to meet specific vehicle or customer requirements. The engineering team applies the same automotive logic and APQP procedures used across the entire CORAM range, ensuring that even these more specialised components benefit from rigorous quality control and technical expertise built up over more than 70 years.

CONTROL
LEVERS

control-levers

For manual engagement of speed changes or specific devices

TELESCOPIC
CHANGE RODS

telescopic-change-rods

For gear selection of trucks with manual transmission and tipper cab

WELDED
METAL STRUCTURES

telescopic-change-rods--

Custom welded support assemblies on robotic systems

Control levers: precision gear engagement

Control levers are used for the manual engagement of speed changes or specific mechanical devices. As control levers manufacturers, CORAM designs these components to deliver precise, consistent actuation with a positive feel that supports operator confidence and reduces fatigue during extended working cycles. Each lever is developed to the vehicle manufacturer’s interface specification and validated to automotive quality standards.

Telescopic rods for gearboxes: gear selection with reliability

Our telescopic rods for gearboxes are designed for gear selection on trucks with manual transmission and tipper cab configurations. The telescopic design allows the rod to accommodate the cab tilt movement without disconnecting the gearbox linkage, ensuring reliable gear selection at all cab positions. Robust materials and precise manufacturing tolerances guarantee long service life even under the high-cycle conditions typical of commercial vehicle applications.

Welded metal structures: custom assemblies with robotic precision

CORAM also produces custom welded support assemblies on robotic welding systems. These structures serve as mounting brackets, support frames and structural interfaces for various vehicle components. Produced using modern robotic welding technology, they offer consistent weld quality, high structural integrity and dimensional repeatability, essential qualities for components that are assembled onto the vehicle production line.

Quality and customisation: the CORAM standard

All special products are manufactured in compliance with the applicable reference standards for design and validation. Where standard configurations do not meet the customer’s requirements, CORAM’s engineering team works directly with the vehicle manufacturer to develop a tailored solution, following the same structured APQP process applied to the company’s core product families. The result is a component that integrates seamlessly into the target vehicle and meets the expected quality and durability standards.

FAQ

What are telescopic rods for gearboxes used for?

Telescopic gearbox rods are used on trucks with manual transmission and tipper cab configurations. The telescopic mechanism allows the gear linkage rod to extend and retract as the cab tilts, maintaining a continuous connection between the gear lever and gearbox without the need to disconnect or reconnect the linkage.

Can control levers be customised for specific vehicles?

Yes. CORAM develops control levers to the exact interface and actuation specifications of each vehicle manufacturer. Customisation can include the lever geometry, travel, actuation force, end-fitting type and surface treatment.

What welding process is used for welded metal structures?

CORAM produces welded metal structures using robotic welding systems, which ensure consistent weld quality, dimensional accuracy and structural integrity. Robotic welding eliminates the variability associated with manual processes and delivers results that meet the strict automotive quality standards required by vehicle manufacturers.

Which quality procedures apply to control levers and special products?

All special products are designed and validated in accordance with the applicable reference standards, following CORAM’s APQP-aligned procedures. This includes design reviews, prototype validation, testing and production process qualification, the same rigorous approach applied across the steering column and brake caliper ranges.

Can special products be ordered as part of a complete vehicle component package?

Yes. Many CORAM customers source multiple product families, for example, steering columns combined with pedalboards and control levers, as part of a coordinated supply relationship. This simplifies the supply chain and ensures consistent quality standards across all cab and chassis control components.

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