Chassis Straightening & Alignment Services at Royans
As New Zealand’s premier heavy vehicle repair specialists, Royans provides comprehensive chassis alignment and frame straightening services tailored to the unique demands of Kiwi transport operations. With facilities strategically positioned in Auckland (Otahuhu, Wiri), Christchurch, Manawatu, and Invercargill, we serve both North and South Island operators with advanced measuring technology and specialist equipment designed for modern commercial vehicles. Whether you’re running long-haul operations on State Highway 1, navigating challenging South Island terrain, or managing urban distribution fleets, our frame alignment expertise ensures your vehicles operate safely, efficiently, and within legislative compliance.
Our advanced chassis straightening techniques ensure your vehicle’s frame is restored to its original specifications. With our state-of-the-art straightening benches and heavy-duty alignment systems, we can handle everything from minor twists to more complex structural repairs to perform precise, high-quality chassis repairs.
Our Chassis Repair and Modification Services Include:
Chassis Straightening
Collision damage, load shift incidents, or structural fatigue can compromise chassis integrity in ways that aren’t immediately visible. Royans’ frame straightening capabilities utilise heavy-duty equipment such as Blackhawk and Josam systems coupled with controlled hydraulic techniques to address warping, twisting, or rail damage. Our technicians understand the stress characteristics of modern chassis materials, from traditional steel construction to contemporary high-tensile alloys increasingly specified by European and Japanese manufacturers. Each straightening procedure includes metallurgical considerations ensuring we restore geometry without introducing material fatigue that could compromise long-term structural performance.
Chassis Alignment
If your vehicle’s chassis has become misaligned due to a collision or structural stress, our chassis straightening and alignment services restore proper function and safety. Using specialised frame and cabin alignment systems, along with state-of-the-art straightening benches, we deliver precise realignment to ensure your vehicle performs at its best and complies with all safety standards. Whether it’s minor adjustments or major structural repairs, we handle everything including complex frame realignments, ensuring that your vehicle complies with all safety standards. Our team is experienced in handling all types of heavy vehicle frames, from light-duty trucks to large industrial machinery.
Chassis Modifications & Extensions
In addition to chassis straightening and alignment, we also offer chassis modifications and chassis extensions. Whether you need additional capacity, a different wheel base configuration, or adjustments to suit a specific operational requirement, our team delivers high‑quality structural modifications and has the specialised expertise and equipment to complete the work to the highest standard. We’re particularly experienced with modifications common in the NZ market, from heavy‑duty trucks to specialised trailers, we customise each modification to suit your vehicle and its intended applications.
Frame Straightening & Repairs
A severe chassis crush can significantly compromise a vehicle’s structural integrity, making it unsafe to operate. Our team is experienced in restoring damaged frames across a wide range of commercial vehicles, using specialised equipment and proven repair methods to return structural stability. New Zealand operating conditions can place additional stress on heavy vehicles, so we focus on delivering strong, reliable repairs that support long‑term durability. Whether the damage is localised or affects multiple chassis sections, we work to restore strength and alignment so your vehicle can return to service safely and with confidence
Specialized Equipment We Use
At Royans, we use the best in industry-standard equipment to provide the highest quality chassis repair services:
- Chassis Crush Areas : Designated repair zones set up to manage impact‑related damage and controlled straightening work on crush sections and high‑stress areas of the chassis
- Frame & Cabin Alignment Systems : Computer‑assisted measurement and alignment tools (including Josam systems at selected branches) used to assess and correct cab, chassis, and structural alignment.
- Heavy-Duty Straightening Systems : Universal straightening equipment (such as Blackhawk aand Josam systems) designed for major structural pulls and multi‑directional frame corrections.
- Alignment Jigs & Fixtures : Robust floor and cab jigs that secure the vehicle during repairs, helping maintain correct geometry throughout the straightening process.
- Straightening Benches & Measuring Technology : Specialised straightening benches combined with advanced measurement tools—including laser‑based systems—to assist technicians in achieving accurate, consistent structural corrections.
- Hydraulic Straightening Equipment : Controlled-force hydraulic systems used for gradual, precise straightening of bent or distorted chassis sections.
Why Choose Royans?
- Specialized Equipment: We utilize cutting-edge computerised technology and laser equipment (including straightening benches by Josam and Blackhawk), to perform precise chassis repairs, modifications, and alignments.
- Skilled Technicians: Our team is highly trained in all types of chassis repairs, from minor adjustments to custom modifications or significant structural damage, ensuring your vehicle is in expert hands.
- Comprehensive Services: We offer a full range of services, including chassis alignment, frame straightening, modifications, extensions, and more, meeting all your heavy vehicle repair needs and ensuring your vehicle is roadworthy and structurally sound.
- Speed & Efficiency: We understand that downtime is costly. Our fast and efficient repair processes are designed to get your vehicle back on the road with minimal delay.
We Service All Types of Commercial Vehicles:
- Trucks (of all makes, sizes, and specifications)
- Trailers (including flatbeds, refrigerated units, and more)
- Buses & Coaches
- Earth-moving Equipment & Machinery
- Farming Equipment
At Royans, we take pride in delivering dependable chassis repairs, straightening, modifications, and extensions for heavy commercial vehicles across New Zealand. Whether the damage involves minor distortion or more extensive structural impact, our experienced technicians and specialised equipment work together to restore strength, alignment, and durability. Every repair is approached with care and expertise to support long-term performance in demanding operating environments.
If you need chassis alignment, repairs, or customised modifications, our team is here to help. Contact us today and we’ll get your vehicle back to work with confidence and reliability



