Winkelmann MSR Technology / Winkelmann Flowforming precision parts

Technical solutions and cold-formed components by Winkelmann MSR Technology / Winkelmann Flowforming (Germany). Precision cylindrical tubes, GROB splined clutch housings, hollow planetary gears, seamless high-pressure gas liners, and aerospace nozzles.

Flowformed precision cylindrical tubes

Winkelmann flowformed cylindrical tubes are manufactured using forward and reverse flow-forming methods on high-precision mandrels. The process achieves uniform work-hardened material grain structure, tight wall thickness tolerances, and superior surface finishing for hydraulic cylinders.

Cold flow-forming of tubes with straightness tolerance up to 0.1 mm per meter
Strain hardening micro-structure boosting yield strength of metallic blanks
Seamless cylinder bodies produced with customized internal bore dimensions
Processing of alloy structural steels, aerospace aluminum, and titanium alloys

Internal and external splined components

Winkelmann splined components and hollow shafts are produced through precision flow-forming on geared mandrels combined with cold GROB spline rolling. This chipless process preserves uninterrupted grain flow, ensuring high torque transmission capacity across heavy-duty driveline assemblies.

Precision shaping of involute and straight-sided splines to exact standards
Continuous unbroken fiber orientation along all gear tooth profile contours
Enhanced contact wear resistance resulting from compressive cold-work stresses
Thin-walled clutch gear components featuring deep internal torque splines

Lightweight clutch and transmission housings

Winkelmann clutch and torque converter housings combine thin-walled hollow cylindrical geometries, tailored bottom profiles, and integrated internal retaining splines. This design reduces rotating drivetrain mass by up to thirty percent while maintaining structural rigidity.

Substantial reduction in rotational inertia optimizing powertrain efficiency
Tailored wall thickness distributions reinforcing peak mechanical stress zones
Single-piece integration of internal splined rings and alignment shoulders
Engineered for high-stress automated and dual-clutch transmission systems

Hollow gear shafts and planetary drive wheels

Winkelmann hollow transmission shafts and planetary gears merge the material integrity of forged forgings with the minimal mass of tubular profiles. Deployed in planetary gearboxes across heavy construction machinery, wind energy turbines, and high-torque industrial drives.

Superior fatigue endurance under continuous cyclic and reversing shock loads
Overall drivetrain weight reduction without sacrificing peak torque capacity
Accurate tooth root geometry requiring minimal post-forming finish grinding
Integrated internal oil distribution galleries and weight-saving relief bores

Seamless liners and high-pressure vessels

Seamless thin-walled metallic liners from Winkelmann MSR Technology for technical gases are formed by closing tube ends through specialized hot and cold metal spinning. The resulting seamless vessels safely withstand high operating pressures in hydrogen, helium, and cryogenics storage.

Total absence of longitudinal or circumferential welded seams across domes
Exceptional shell leak-tightness for gas containment up to 700 bar pressure
Uniform wall stress profile achieved through smooth dome contour curvature
Fabricated from high-strength aluminum alloys and specialized chrome steels

Flowformed aerospace cones and nozzles

Conical fairings, transition adapters, and engine nozzles manufactured by Winkelmann Flowforming are crafted via shear forming and flow-forming of heat-resistant alloys. They deliver minimal gas-path surface roughness, dynamic balance integrity, and stiffness under thermal extremes.

Seamless forming of conical, tapered, and ogival aerodynamic hollow bodies
High structural dimensional stability under severe vibration and thermal flux
Minimal rotational imbalance ensured by precision tool mandrel concentricity
Expert cold-working of high-nickel alloys, titanium, and stainless grades

Engineering profile and metal flowforming expertise of Winkelmann

Headquartered in Ahlen, North Rhine-Westphalia, Winkelmann MSR Technology GmbH operates as a core business division of the family-owned Winkelmann Group established in 1898.

The company specializes in chipless cold metal forming technologies, bringing together forward and backward flow-forming, spinning, and profile rolling into integrated production flows.

The modern Ahlen manufacturing plant operates heavy-duty multi-roller CNC flow-forming machines capable of producing rotationally symmetrical hollow components from high-strength structural steels, aluminum, titanium, and heat-resistant nickel alloys with enhanced grain density and high fatigue life.

Precision flowforming of thin-walled cylindrical tubes and cylinder sleeves

Winkelmann Flowforming delivers seamless cylindrical tubes engineered with uniform wall thickness and fine internal bore surface finish.

During forward or reverse flow-forming, rotating cylindrical preforms are compressed by three synchronized forming rollers over a hardened tool mandrel, causing the metallic alloy to flow axially without generating micro-fissures.

Work hardening during cold forming elevates the tensile strength and surface hardness of cylinder bores, eliminating secondary internal honing procedures. Finished sleeves are widely deployed in hydraulic cylinders, telescoping lift masts, and fluid power systems.

Internal and external spline generation through GROB cold rolling

For severe torque transmission applications, Winkelmann MSR Technology implements cold spline rolling based on the GROB method. Involute and straight-sided splines are formed by two counter-rotating roller heads acting on a thin-walled tubular workpiece clamped over a toothed tool mandrel.

Unlike conventional gear milling or broaching, cold rolling preserves unbroken metallurgical grain flow along each tooth profile from root to tip.

This eliminates notch stress concentration points and boosts the contact wear endurance of splined drive elements in planetary gearboxes and heavy industrial drivelines.

Weight optimization and architecture of lightweight clutch housings

Across automotive and heavy equipment drivetrains, Winkelmann clutch and torque converter housings combine a thin-walled cylindrical body, an integrated flange, and high-precision splined engagement rings into a monolithic component.

Utilizing flow-forming enables engineers to tailor cross-sectional wall thicknesses, adding material volume in peak mechanical load zones while thinning unstressed areas.

This cold-forming approach reduces total rotating powertrain component mass by up to thirty percent, lowering rotational inertia and optimizing dynamic response across heavy machinery gearboxes.

Seamless metal liners and high-pressure containment vessels for gases

For industrial and technical gas containment, Winkelmann MSR Technology manufactures seamless metallic liners through rotary necking-in of tubular blanks.

Cylindrical tubes are spun and closed by forming rollers to create hemispherical or elliptical end domes free from longitudinal or circumferential weld seams.

The resulting leak-tight shells serve as liners for composite high-pressure vessels used in compressed hydrogen transport, helium storage, and cryogenic fluid distribution at operating pressures reaching seven hundred bar while complying with rigorous safety norms.

Thin-walled aerodynamic cones, adapters, and nozzles for aerospace engineering

The aerospace team at Winkelmann Flowforming manufactures conical fairings, interstage rings, jet engine exhaust nozzles, and accumulator housings for flight hardware.

Utilizing shear forming and cold flow-forming in a single continuous setup, intricate conical shells with variable wall thickness profiles are shaped from high-temperature nickel alloys and titanium grades.

High tool spindle concentricity guarantees low initial rotational imbalance, which is essential for rotating turbine components exposed to severe vibration, acoustic resonance, and thermal gradients.

Winkelmann MSR Technology / Winkelmann Flowforming and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Winkelmann MSR Technology / Winkelmann Flowforming and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.