Heavy Commercial Vehicle Forging Specialists
Shivam Forge is a specialized truck parts forging manufacturer supplying wheel hubs, axle shafts, king pins, brake cam shafts, leaf spring pins, knuckles, and S-cam components forged in EN24, SAE 4140, and 42CrMo4 from Shapar GIDC, Rajkot. We serve HCV OEMs, aftermarket distributors, and fleet maintenance suppliers across India and in 12+ export countries.
Trucks and heavy commercial vehicles operate under punishment that light vehicles never face — fully laden axle loads of 10–16 tonnes, continuous brake applications on highway runs, rough terrain in mining and quarry operations, and field conditions in agricultural logistics. The forged steel components that keep trucks rolling must have the grain flow integrity, impact toughness, and dimensional precision that only closed-die forging delivers. At Shivam Forge, we have been producing truck-grade forgings for 20+ years, working with EN24, SAE 4140, 42CrMo4, and EN8 grades in the 2 kg to 120 kg weight range.
Front and rear wheel hubs for trucks, tippers, and tankers forged in EN24 (817M40) and 42CrMo4 to withstand radial and axial loads of 8–16 tonnes per axle. Forged near-net shape with flanged mounting faces held to ±0.3 mm. CNC-machined finished hubs supplied on request, bore and stud pattern drilled to drawing.
Drive axle shafts for rear axle assemblies in medium and heavy commercial vehicles forged in SAE 4140 and EN24 with splined ends. Shaft weights range from 8 kg to 55 kg. Torsional strength is critical — forged grain flow aligned along shaft length gives 25–35% better fatigue life than machined-from-bar alternatives.
Steering knuckle king pins forged in EN24 and heat-treated to 850–1000 MPa tensile. King pins are subject to combined bending and shear from steering geometry loads — forged grain continuity in the pin shank is essential. We produce both solid and shouldered king pin designs to OEM drawings.
S-cam brake cam shafts forged in EN19 and 42CrMo4 for the foundation brake assemblies of HCV rear axles. The helical S-cam profile is critical for smooth brake application. We forge the cam shaft blank with the S-cam form included, reducing post-machining stock removal and maintaining structural integrity at the cam lobe.
Front spring pins, rear shackle pins, U-bolts, and spring eye bushings forged in EN8 and EN24 for truck suspension systems. Spring pins in service experience constant vibratory loading — forged pins with consistent hardness across the cross-section outperform welded or machined alternatives in wear life by 3–4x.
Front axle steering knuckles for trucks and multi-axle vehicles forged in EN24 and SAE 4340 — among the most structurally demanding forgings in the HCV drivetrain. We produce full knuckle assemblies with integral bosses, king pin bore, and caliper mounting flanges forged to minimize machining stock.
Fifth wheel jaw plates, king pins (trailer), locking wedges, and mounting brackets forged in SAE 4140 and EN24 for tractor-trailer coupling systems. Fifth wheel components are life-safety parts — we supply with material test certificates and dimensional reports as standard.
Forged slack adjuster bodies, worm shaft housings, and brake anchor brackets in EN19 for the automatic brake adjusting systems on air-brake HCV axles. Dimensional accuracy of the worm gear bore and anchor pin hole is critical — held to H7 tolerance on machined versions.
Slip yokes, flange yokes, and companion flanges for HCV propeller shaft assemblies forged in SAE 4140 and 20MnCr5. The yoke ear bore alignment is maintained within 0.05 mm on matched pairs. Balanced to ISO 1940 G6.3 on machined and assembled components.
Differential pinion shafts and bevel gear blanks forged in 20MnCr5 and 16MnCr5 for HCV rear axle differential assemblies. Forged near-net shape to reduce carburizing depth requirement and CNC machining time. Shot blasted and phosphate coated for corrosion protection during transit.
Outrigger box pins, body lift pins, and cross-member mounting brackets forged in EN24 and SAE 4140 for truck-mounted cranes, tippers, and special-purpose HCV superstructures. Heavy cross-sections forged solid — no weldments in high-stress load paths.
Forged fuel tank saddle straps, cab mounting brackets, and engine sub-frame mounts in IS 2062 and C45 for truck assembly lines. High-volume production forgings supplied in normalized condition, shot-blasted, and rust-proofed for line-side fitment.
Truck components demand alloy steels with proven hardenability profiles — EN24, SAE 4140, 42CrMo4, SAE 4340, and 20MnCr5. Our metallurgical team selects and verifies each grade, and our heat treatment facility achieves the tensile strengths (850–1200 MPa range) that HCV OEM specifications demand.
Our Rajkot facility operates 5-tonne and 8-tonne drop forging hammers specifically suited for truck component weights of 5–120 kg. Higher hammer energy means better die fill on complex geometries like knuckles, cam shafts, and flanged hubs without needing multiple blow sequences that can introduce internal defects.
We work to customer-supplied OEM drawings or reverse-engineer from physical samples. Our in-house metrology lab — equipped with Vernier height gauges, CMM, bore gauges, and surface finish testers — verifies all critical dimensions before the first piece is approved and tracked through production.
Quench-and-temper, normalizing, case-hardening (carburizing), and induction hardening of specific surfaces (king pin shank, cam lobe) performed in our controlled-atmosphere furnaces. Hardness tested by Brinell and Rockwell at multiple cross-section points per batch.
We supply both OEM truck assembly lines and aftermarket replacement part distributors. OEM supply requires consistent lot-to-lot dimensional repeatability; aftermarket supply requires broader grade coverage and flexible minimum quantities. We handle both from the same Rajkot facility.
HCV aftermarket customers in the UK, Germany, UAE, and Australia regularly source truck forgings from our Rajkot plant. We provide ISO, material test certificates, HS code classification support, and customer-specific labeling. Sea freight lead times to Europe and Gulf ports are typically 22–28 days from production completion.
Heavy commercial vehicle manufacturers and aftermarket suppliers across India know that the reliability of a truck on the road depends entirely on the quality of the forged components in its axle, steering, and brake systems. At Shivam Forge, Shapar GIDC, Rajkot, we have been forging HCV components for over 20 years, producing truck wheel hubs, axle shafts, steering knuckles, king pins, S-cam brake shafts, and leaf spring pins to the dimensional and metallurgical standards that OEM specifications demand. Our closed-die forging hammers — rated up to 8-tonne capacity — and in-house heat treatment cover the full range of truck component weights from 2 kg spring pins to 120 kg heavy steering knuckles.
The material selection for truck forged parts is not arbitrary. EN24 (817M40) delivers the combination of hardenability, toughness, and tensile strength (850–1000 MPa after Q&T) that truck hub and steering knuckle designers require. SAE 4140 (42CrMo4) is the standard choice for cam shafts, axle shafts, and propeller shaft yokes where torsional fatigue is the governing failure mode. For case-hardened components like differential gears and cam lobe surfaces, 20MnCr5 is our standard. We source all billets from approved Indian steel mills with mill test certificates, and we maintain material traceability from billet heat number through finished component inspection records.
The truck aftermarket is a significant part of our business. Replacement hubs, king pins, axle shafts, and S-cams for TATA, Ashok Leyland, Eicher, and Mahindra trucks are produced to OEM drawing dimensions with dimensional inspection certificates. Aftermarket distributors in India, the UAE, and East Africa source from Shivam Forge because the combination of consistent quality, competitive pricing from Rajkot, and reliable delivery turnaround (typically 14–21 days for existing programs) makes us a dependable supply partner versus imports from China or Europe.
For export buyers in the UK, Germany, and Australia, our truck forged components are supplied with full documentation — material test certificates to EN 10204 3.1 standard, dimensional inspection reports, non-destructive test results where specified, and packing lists. We have experience with customer-specific quality plans, PPAP documentation for Tier-1 automotive supply, and third-party inspection agencies (Bureau Veritas, SGS, TUV) for pre-shipment inspection on critical HCV safety components.
Starting a new truck parts program with Shivam Forge begins with your drawing or sample. Our engineering team reviews the geometry for die design feasibility, advises on forging draft angles and parting line location, and comes back with a die cost and per-piece price within 5–7 working days. First samples (ISIR) are typically available within 4–6 weeks of die approval. Call +91 92657 72827 or email sales@shivamforge.com to discuss your truck forging requirements — we handle everything from a single prototype to an annual OEM program.
We forge wheel hubs, axle shafts, king pins, steering knuckles, S-cam brake shafts, slack adjuster bodies, leaf spring pins, fifth wheel components, propeller shaft yokes, differential pinion shafts, and custom HCV structural components. Both OEM and aftermarket part numbers can be produced from drawings or samples.
EN24 (817M40) and 42CrMo4 (SAE 4140) are the primary grades for truck hubs, axle shafts, and steering knuckles — both offering quench-and-temper hardness in the 850–1000 MPa tensile range. SAE 4340 is used for the most demanding applications like heavy mining truck components. EN8 and EN19 are used for lighter duty brackets and pins.
We produce truck forged components from 2 kg (spring pins, small brackets) to 120 kg (large steering knuckles, heavy hub assemblies) using our closed-die hammer fleet rated up to 8-tonne capacity.
Both. We supply Tier-1 and direct OEM truck assembly lines that require consistent dimensional repeatability and full lot traceability, and we supply aftermarket replacement part distributors that need broader model coverage and flexible quantities. Our quality system supports both supply models.
Yes. In-house heat treatment is a core capability at Shivam Forge. Truck hubs and axle shafts are typically supplied quench-and-tempered to specified tensile/yield ranges (e.g., 850–1000 MPa UTS for EN24). Brinell hardness is verified and reported on the inspection certificate supplied with each lot.
Pricing depends on hub weight, material grade, heat treatment requirement, surface finish, and order quantity. Shivam Forge offers competitive pricing from Rajkot for both domestic Indian buyers and export customers. Share your hub drawing or part number with us at sales@shivamforge.com for a quotation within 24 hours.
Shivam Forge at Shapar GIDC, Rajkot — 360024 is a specialized manufacturer of HCV forged components including truck hubs, axle shafts, king pins, S-cams, and steering knuckles. With 20+ years in the forging industry and exports to 12+ countries, we are among the most experienced truck parts forging manufacturers in Gujarat.
Send your part drawings, material specifications, required quantity, and delivery requirements to sales@shivamforge.com. For aftermarket parts, a physical sample or OEM part number with make/model details is sufficient to start the reverse engineering and quotation process. Call +91 92657 72827 for immediate assistance.
Why Choose Shivam Forge
Shivam Forge delivers precision hot-forged components from our integrated Shapar, Rajkot facility — covering forging, CNC machining, heat treatment, and quality inspection under one roof.
