
As the global automotive industry transitions toward quieter transmissions, electrified drivetrains, and high-efficiency gear systems, gearbox manufacturing has become one of the most precision-intensive machining disciplines. Whether producing conventional transmission gears, hybrid drive units, or EV reduction gearboxes, manufacturers are challenged to achieve micron-level accuracy, superior surface finishes, and exceptional process stability—all while reducing production costs.
While cutting tools and CNC machines often receive the spotlight, the true performance enhancer on the shop floor is increasingly the metalworking fluid. Recognizing this critical need, OELHELD has developed a portfolio of advanced machining and grinding fluids that help gearbox manufacturers maximize productivity, improve component quality, and lower total operating costs.
Precision Cooling for High-Performance Gearbox Components
Gearbox production involves multiple demanding machining operations including turning, milling, drilling, hobbing, honing, and precision grinding. These processes generate intense heat and friction that can compromise dimensional accuracy, induce thermal distortion, and accelerate tool wear.
OELHELD’s AquaTec Series of premium water-miscible metalworking fluids has been engineered specifically to address these challenges. Developed in close collaboration with machine builders, universities, and manufacturing partners, AquaTec combines exceptional cooling performance with outstanding lubrication and flushing characteristics, ensuring stable machining conditions throughout long production cycles.
Its advanced formulation delivers excellent emulsion stability, significantly extending coolant life while minimizing maintenance requirements. Manufacturers also benefit from reduced foaming even in high-pressure machining systems, superior corrosion protection for machine tools and components, and excellent surface finish across both ferrous and non-ferrous materials.
Importantly, AquaTec is formulated without formaldehyde, boron, mineral oils, or short-chain chlorinated paraffins, making it a safer and more environmentally responsible solution for modern automotive production facilities.
GTL-based SintoGrind Sets New Standards in Gear Grinding
Grinding represents one of the most critical stages in gearbox manufacturing, particularly for hardened gears where surface integrity directly influences transmission noise, efficiency, and durability.
OELHELD’s GTL-based SintoGrind grinding oil has emerged as a high-performance solution designed specifically for these demanding applications.
Its outstanding air-release characteristics ensure uninterrupted lubricant flow into the grinding zone, enabling higher grinding speeds without risking thermal damage or grinding burns. The result is consistently superior surface finish, tighter dimensional tolerances, and significantly shorter production cycles.
The fluid’s exceptional lubricity minimizes friction between grinding wheel and workpiece while its low evaporation rate maintains stable viscosity throughout extended production runs. This translates into predictable machining performance even under the most demanding operating conditions.

Cleaner Machines, Lower Costs, Higher Productivity
One of the most valuable advantages of GTL-based SintoGrind is its ability to keep grinding machines remarkably clean. Superior flushing capability minimizes sludge formation, prevents filter clogging, and reduces grinding wheel loading, enabling longer wheel life and fewer dressing cycles.
Its higher flash point further enhances operational safety in high-energy grinding environments, while excellent filtration characteristics improve coolant cleanliness and reduce energy consumption.
Together, these benefits contribute to higher Overall Equipment Effectiveness (OEE), fewer production interruptions, and substantially lower consumable costs.
Future-Ready Fluid Technology for Automated Manufacturing
As automotive manufacturers increasingly adopt lights-out machining, robotic automation, and smart manufacturing systems, machining fluids must deliver long-term consistency with minimal operator intervention.
OELHELD’s advanced formulations are engineered to support these next-generation manufacturing environments by maintaining process stability over extended operating periods while ensuring reliable chip evacuation, excellent cooling performance, and repeatable machining quality.
Adding further confidence, OELHELD products are approved by many of the world’s leading gear manufacturing machine builders, including JUNKER, Reishauer, Studer, KAPP NILES, Klingelnberg, Schaudt, Gleason, Prawema, Höfler, Liebherr, Samputensili, EMAG, Koepfer, and Hegenscheidt.
As automotive transmissions evolve toward greater efficiency and electrification, OELHELD continues to demonstrate that the right metalworking fluid is not merely a consumable—it is a strategic manufacturing asset that enhances precision, productivity, sustainability, and profitability. For gearbox manufacturers striving to remain globally competitive, advanced fluid technology is becoming just as essential as the machines and tools that shape every gear.



