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Home > Industrial Equipment & Components > Industrial Customized Service > Machining Service > High Precision Turning Pressure Bar Rods Hardened Machined Rods

High Precision Turning Pressure Bar Rods Hardened Machined Rods

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US$ 0.15 - 3.2 MOQ: 1 Piece

Key Specifications

Get Latest Price

Material:

Steel, Alloy

Application:

Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Surface Treatment:

Passivating

Contact Supplier Request Quote Chat Now

Dongguan Bomei Precision Machining Co., Ltd

Payment & Shipping

Payment Methods:

Port of Shipment:

Shenzhen

Delivery Detail:

7 days

Product Details
Company Profile
Contact Us

Material Steel, Alloy

Application Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Surface Treatment Passivating

Standard GB, EN, API650, China GB Code, JIS Code, TEMA, ASME

Production Type Mass Production

Machining Method CNC Turning

Precision CNC-turned pressure bar rods with hardened surface treatment, engineered for high load-bearing capacity, wear resistance, and dimensional stability—ideal for industrial machinery, hydraulic/pneumatic systems, and automation equipment transmission applications.

Parameter	Key Details
Base Materials	Alloy Steel (4140/4340): High hardenability and fatigue resistance, suitable for heavy-duty pressure transmission rods; Carbon Steel (C45E/S45C): Cost-effective option for general-purpose pressure bars; Stainless Steel (304/316): Corrosion-resistant for humid/chemical environments; all materials support post-hardening processes
Surface Hardening Treatments	Nitriding (surface hardness ≥650 HV, hardened layer 0.1–0.5mm, no dimensional distortion); Induction hardening (local hardness 58–62 HRC for stress-bearing sections); Hard chrome plating (thickness 0.02–0.1mm, hardness ≥850 HV, wear/corrosion resistance); all treatments comply with industrial rod component standards
Processing & Precision Tolerance	CNC precision turning (single/multi-spindle for mass production), centerless grinding (for roundness accuracy), polishing, threading (M4–M30 ISO 6g threads); tight tolerances: Diameter tolerance h5–h6 (±0.005–±0.01mm); straightness ≤0.005mm/m; concentricity ≤0.008mm; surface roughness Ra 0.2–0.8μm (smooth surface reduces friction with mating parts)
Size Range & Customization	Customizable dimensions: Diameter 3–150mm; length 50–3000mm; rod profiles (cylindrical, stepped, tapered, threaded ends); optional features (keyways, grooves, flange collars, heat-shrink fit sections); supports custom CAD/STEP file designs for non-standard pressure bars
Compatibility	Fits hydraulic/pneumatic cylinder piston rods, industrial press pressure bars, automation equipment transmission rods, and machine tool guide rods; compatible with linear bearings, seals, and mounting brackets

Application Scenarios

Hydraulic Press Systems: Hardened 4140 alloy steel pressure bar rods—high load capacity withstands ton-level pressing force, nitrided surface resists wear from cylinder seals, ensuring stable pressure transmission.
Industrial Automation Lines: Precision stepped pressure rods—tight diameter tolerance ensures accurate workpiece positioning, smooth surface finish reduces friction during linear motion, minimizing motor energy consumption.
Machine Tool Equipment: Induction-hardened guide pressure bars—local high hardness enhances wear resistance at contact points, straightness accuracy ensures precise tool movement, improving machining precision.
Pneumatic Cylinder Components: Stainless steel pressure rods—corrosion-resistant surface adapts to factory humid environments, polished finish reduces seal wear, extending cylinder service life.
Construction Machinery: Heavy-duty tapered pressure bars—high fatigue resistance handles vibration and impact during operation, hardened surface resists abrasion from dust and debris in construction sites.