Definition -A Top Line Shaft is a rotating shaft mounted at the upper level of a machine or production area to transmit power to multiple driven units. Its purpose is to distribute rotational motion from a single power source to various machines through belts, pulleys, or gears. Top line shafts are commonly used in factories, textile mills, and traditional industrial power transmission systems.

Sunmach is a globally established manufacturer and supplier of precision-engineered Top Line Shafts, produced using premium-grade Nickel Alloys and high-quality Stainless Steel. Each Top Line Shaft is custom-fabricated in strict accordance with customer-approved drawings and manufactured to comply with defined dimensional tolerance requirements. These made-to-order shafting solutions are developed to perform reliably in highly demanding and mission-critical industrial applications.

We are an ISO 9001:2015 certified company, demonstrating our commitment to rigorous quality standards and consistent product excellence to deliver the best of the Nickel Alloys & Stainless Steel Top Line Shafts.

We make these Top Line Shafts from a range of high-performance & exotic materials such as : Hastelloy® C-276, Hastelloy® C-22, Hastelloy® B-2, Monel® 400, Monel® K-500, Inconel® 600, Inconel® 625, Inconel® 718, Titanium Grade 2, Titanium Grade 5, Titanium Grade 7, Duplex S31803, Duplex S32205, Super Duplex S32750 to various Stainless Steel grades of SS 304L, SS 316L SS 310, SS 310H, SS 347H, etc followed by Special Stainless Steel Grades such as 904L Stainless Steel, UNS N08904, DIN EN1.4539 Nitronic® 50, Nitronic® 60, UNS S21800, DIN EN, 254 SMO, UNS S31254, DIN EN 1.454, Stainless Steel 410 & Stainless Steel 420 etc.

Sunmach’s extensive manufacturing capabilities and In-Stock Genuine & Authentic Raw Material availability allows us to support demanding industrial requirements with durable, corrosion-resistant, heat resistant & reliable Shafts made from Genuine Nickel Alloys and Stainless Steel Material, delivered dot in time to any corner of the world, supported by all required test certificates and with 100% traceability.