What does ROPS stand for Kubota?
Kubota | Rollover Protective Structures (ROPS) - Program.
Roll-Over Protective Structures. Standard Number: 1928.51. Title: Roll-over protective structures (ROPS) for tractors used in agricultural operations.
Rollover Protection Structures (ROPS) are roll bars or roll cages designed for wheel- and track-type agricultural tractors. ROPS are designed to create a protective zone around the operator when a rollover occurs.
When manufacturers provide rollover protective structures (ROPS) and seat belts on zero-turn mowers, the safest way to operate the mower is with the ROPS in the upright position and the seatbelt fastened.
A general rule of thumb is that 2,000 to 2,500 hours is well broken-in while anything above 35,000 hours is considered high. This isn't, however, the only factor you should look at.
Formed in 1979 and based at Thame, Oxfordshire, Kubota (U.K.) Limited is a subsidiary of the Kubota Corporation, which was established in 1890 as a manufacturer of cast-iron water pipes in Osaka, Japan. In the early 1900s, the Kubota Corporation turned its attention towards powered equipment.
Title: Protective frames (roll-over protective structures, known as ROPS) for wheel-type agricultural and industrial tractors used in construction.
A rollover protective structure (ROPS) fits on an agricultural tractor and protects the operator in the event of a rollover. A tractor's ROPS and seat belt work in conjunction to secure the operator in a protective zone, reducing the operator's risk of being crushed under the tractor should it overturn.
The use of these rollover protective structures (ROPS) and a seat belt system can help reduce injuries. Many older tractors without ROPS are still in use. All tractors manufactured after October 25, 1976, must be equipped with ROPS and a seatbelt.
Suppliers can sell a tractor without a ROPS if there is no approved frame.
What is ROPS on machinery?
A Roll Over Protection System or ROPS is designed to reduce the possibility of a seat belted operator being crushed should the machine roll over. Failure to provide a Role Over Protective System on earth moving machinery can lead to serious injury or death for the operator.
ISO 3449 ROPS Testing
ISO 3449:2004 specifies laboratory tests for measuring the structural characteristics of, and gives performance requirements in a representative test for, falling-object protective structures (FOPS) intended for use on ride-on earth-moving machines as defined in ISO 6165.

What is the difference between ROPS & FOPS? ROPS and FOPS are designed to provide protection to the vehicle operator from falling objects and rolling-over accidents. But ROPS' goal is to protect the operator's cabin in an accident. And FOPS' main aim is to ensure the safety of vehicle operators and machinery.
ROPS can also be abused or misused. Holes should never be drilled into the ROPS frame, nor should a piece of steel be welded onto the frame. If lighting or other light attachments are needed, they should be clamped onto the ROPS.
If mobile equipment can roll over in use, rollover protective structures (ROPS) are required to protect the people carried from being crushed, should rollover occur. Seat restraints are also required where there is a risk of being crushed during rollover.