Custom Machined Spacer
- Home
- Exotic Metal Machining
- Custom Machined Spacer
Sunmach is an ISO 9001:2015 certified global manufacturer specializing in premium Custom Engineered Spacers, high-integrity Custom Machined Spacers, and high yield Duplex Spacers, custom-machined directly from verified mill-certified raw stock to client blueprints. Serving as the primary structural spacers that establish and maintain exact axial clearances, absorb heavy bolt preloads, and distribute clamping forces uniformly, our custom-finished components are designed to resolve critical field alignment issues, such as dynamic axial play, shaft misalignment, and uneven load distribution in heavy machinery. By utilizing advanced multi-axis CNC turning, double disc parallel grinding, and precision cylindrical polishing, we fabricate multi-stage spacers that eliminate the primary causes of dynamic machinery failure, including non-parallel face deformation under high preloads, thermal expansion mismatches in rotating assemblies, and localized crevice corrosion beneath dynamic backing plates. Specially designed to operate under combined compressive preloads, severe thermal gradients, and aggressive chemical processing environments, our custom-finished stainless steel and Duplex Spacers provide outstanding structural stability across a broad spectrum of temperatures ranging from 40 °C to +300 °C. Sourced exclusively from premium global mills, our dual-phase duplex alloys offer nearly double the yield strength of traditional austenitic steels with exceptional fatigue-corrosion resistance, making them highly specified for seawater reverse osmosis (SWRO) high-pressure pumps, coastal municipal wastewater systems, oil and gas refinery process loops, and abrasive mining slurry lines. Backed by rigorous quality validation, compliance with international material safety specifications, and complete mill traceability, Sunmach ensures zero-failure performance, safeguarding mission-critical process machinery against dynamic seal leakage, premature bearing wear, and expensive process downtime.
Custom Machined Spacer
Definition -A Custom Machined Spacer is a spacer manufactured to specific dimensions, tolerances, and materials based on application requirements. Its purpose is to maintain precise spacing, alignment, and load distribution where standard spacers are not suitable. Custom machined spacers are commonly used in pumps, gearboxes, motors, bearings, and specialized industrial machinery.
Sunmach is an international manufacturer of high-accuracy custom machined spacers, produced using premium Nickel Alloys and Stainless Steel materials. All spacers are manufactured exactly to customer drawings and dimensional tolerance standards. These precision components are engineered for critical industrial applications requiring dependable performance.
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 Custom Machined Spacer.
We make these Custom Machined Spacer, 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.
Stainless Steel & Nickel Alloy Custom Machined Spacer Application Industries
Sunmach serves a diverse range of markets including Pump Industries, Chemical Processing, Semiconductor, Power Generation, Aerospace, Oil & Gas, Pharmaceutical, Food & Beverage, Marine, Pulp & Paper, Petrochemical & Refining, Air Pollution Control and Water Treatment.
Sizes
| Maximum Diameter: | As per the customer's drawings. |
| Maximum Length: | As per the customer's drawings |
| Maximum Weight: | As per the customer's drawings |
Frequently Asked Questions
Common questions about Sunmach Custom Machined Spacers
Standard stainless steel spacers offer excellent general corrosion resistance and versatility. Duplex Spacers provide nearly double the mechanical yield strength, allowing engineers to use thinner spacer walls or handle significantly higher mechanical clamping forces.
Precision Custom Machined Spacers act as alignment barriers that maintain exact axial spacing between rotating elements, bearings, and seals, ground to extremely flat and parallel limits to prevent shaft deflection and ensure even preload distribution.
Yes, but the limit depends on the alloy. Standard duplex alloys are restricted to +300°C to prevent embrittlement, while specialized high-temperature stainless steel grades like SS 310 or SS 347H can withstand continuous temperatures up to +600°C or higher.
Nitronic 60 is a premium, nitrogen-strengthened alloy with natural anti-galling and wear resistant properties, allowing Custom Machined Spacers to be repeatedly assembled and disassembled without thread or face seizing.
Every batch is shipped with an EN 10204 3.1 Mill Test Certificate verifying heat number, chemical composition, and mechanical hardness, along with ultrasonic testing and liquid penetrant inspection for complete component reliability.