In the heart of a steel mill, every component works under immense pressure — both literally and operationally. Among them, the industrial crop shear plays a vital role. These powerful machines cut the head and tail ends of hot steel strips to the right dimensions before they move on to downstream processes. Precision here isn’t optional — it’s the foundation of performance, safety, and uptime.

But precision in cutting depends on precision in tightening. The torquing of crop shear bolts determines the clamping force that holds the blades. If bolts are overtightened, blades can warp or crack. If under tightened, the assembly loosens, risking catastrophic failure mid-operation. Either way, the consequences are costly and dangerous.

So, when one of India’s leading integrated steel plants needed a 70,000 Nm torque tool with a 2½-inch square drive for their crop shear application, they turned to ABS.

The Challenge: Precision at Scale

Crop shears operate in high-temperature environments, and their bolts demand extreme accuracy in tightening. The challenge wasn’t just creating a tool powerful enough — it had to be reliable, safe, and serviceable, while meeting stringent shutdown timelines. The requirement:

• Tool capacity of 70,000 Nm
• 2½-inch square drive
• Compatible with a 210mm across-flat nut size
• Delivered, tested, and commissioned within the scheduled plant shutdown window

The ABS Solution: CNX 72 — Engineered for Excellence

ABS developed the CNX 72, a custom-built, heavy-duty torque tool designed specifically for the demanding environment of hot metal shear operations.

Our engineering and manufacturing teams worked in tandem to:

• Design and produce the tool in record time
• Test and calibrate it for performance and durability
• Deploy trained technicians on-site to execute the replacement of crop shear bolts
• Ensure the entire process — from delivery to commissioning — aligned seamlessly with the plant’s operational schedule

The result was a precisely torqued crop shear assembly, restoring performance, extending equipment life, and ensuring safe operation — all within the defined shutdown period.

The Outcome: Reliability Delivered

The client expressed their appreciation through an official acknowledgment, commending the technical competence, responsiveness, and professionalism of the ABS team. They recognized the successful execution of a high-risk maintenance job without deviation from safety or schedule — a testament to ABS’s reliability in mission-critical environments.