A new tiltrotator system introduced by Caterpillar® will enable its excavators to improve machine utilisation.
Caterpillar has designed a new line of tiltrotators for its tracked excavators from the 313 to 335, and wheeled excavators from the M314 to M322.
They come with a tilt system that enables attachments to simultaneously rotate 360 degrees and tilt up to 40 degrees, allowing wheeled and tracked excavators to perform a range of tasks — such as digging, grading, and compacting — with precise movements, without repositioning the machines.
This product launch introduces machine configurations to replace S and HCS interfaces, which are connection systems that allow attachments to be mounted securely and to operate efficiently. The new systems are designed to deliver better overall performance and improved fuel efficiency.
As standard, the machines will include the GS520 Tilt Sensor 2, which helps accurately measure attachment movement, as well as RPS coding, a system that improves control and safety when using attachments.
For machines using HCS sandwich configurations — where additional hydraulic components are integrated between the machine and the attachment — the new models will also offer higher hydraulic flow, allowing attachments to operate faster and more effectively.
Cat Work Tools Senior Specialist, Jason Zhang, said the tiltrotator system allows more precise movements without repositioning the machine.
“Less machine repositioning helps to reduce undercarriage wear and lowers overall costs,” he said.
New standard features
The new models also feature a standard high-flow swivel, providing up to 200 litres per minute flow at 250 bar for use with high-flow work tools.
Pairing the tiltrotator with a Next Generation Cat excavator that has a second hydraulic line boosts hydraulic flow and pressure to 250 l/m at 350 bar.

“Pressure-compensated hydraulic valves manufactured with spools provide better control of the hydraulic flow than previous designs, allowing the tiltrotator to maintain stable rotation speed regardless of tilt speed,” Jason said.
“A quick-connect interface provides fast hydraulic attachment changes. SecureLock™ uses sensor technology inside the locking cylinder to verify the tool is correctly connected and securely locked, to reduce the risk of swinging or dropping tools.
“You can expect dependable performance from the hydraulics for a smooth and consistent operation.”
For all other configurations, flow capability has increased from 60 l/m to 100 l/m. For wheeled excavators, there is the option for a high-flow swivel that provides 250 l/m at 250 bar.
Nomenclature for the new Cat range has been changed to align with current excavator models and differentiate from past TRS models.
The legacy TRS models were TRS10, TRS14, TRS18, and TRS23.
The new TRS models have been named TRS12, TRS17, TRS20, and TRS26.
“Along with this change, there are a number of improvements bringing better value, productivity, and efficiency to our customers,” Jason said.
“Cat TRS models now feature a single grease point connection with the excavator’s auto-grease system, and the simple-to-use innovative lubrication system is developed to quickly distribute the right amount of grease to the appropriate points,” he said.
Double-acting tilt cylinders fitted with a load-holding valve ensure the load is securely in position, even in the event of the hydraulic system losing pressure. Providing maximum heat distribution, the worm gearbox is filled with oil for optimum lubrication.
“With the new tiltrotator models, operators can change tools without leaving the cab when equipped with the full hydraulic coupler, enhancing safety, productivity, performance, and efficiency. In addition, they are able to convert standard S couplers to hydraulic-connect ones for increased efficiency,” Jason said.
“A plastic cover with built-in electrical harness provides easy connection to the hydraulic valves and simplifies servicing for operators. A frame modification on the new series reduces dirt exposure for the grading sensor, which is further protected by a metal cover.”
The GS520 tilt sensor is included with a standard protected mounting location for the sensor, and a standard Q14 electrical connection, replacing V90 connectors that will now be an option.
Larger diameter steel lines replace hydraulic hoses to the hydraulic motor for improved performance, reducing back pressure for improved efficiency, life, and easier maintenance.
Pressure-compensated hydraulics maintain stable rotation speed when the tilt function and rotate function are used at the same time.
“These new Cat tiltrotators can be used with a range of attachments like buckets, grapples, compactors and more, allowing for higher machine utilisation and improved productivity,” Jason said.
“Our integrated new TRS12, TRS17, and TRS20 models reduce installation time and show up automatically on the machine’s monitor, allowing it to be easily controlled by the joystick. I highly encourage you to check it out with your local Cat dealer.”
Contact your local Cat dealer now.
- NSW/ACT: WesTrac 1300 881 064
- VIC/TAS: William Adams 1300 923 267
- WA: WesTrac 1300 881 064
- QLD/NT: Hastings Deering 131 228
- SA: Cavpower 08 8343 1600
- NZ: TERRA 0800 93 39 39

