20 kg commercial Olympic weightlifting bar configured around IWF men's bar dimensions for commercial gyms, weightlifting clubs, strength and conditioning facilities, fitness equipment distributors, and private label programs.
Product Specifications
|
Item |
Specification |
|
Product Type |
Olympic Weightlifting Bar |
|
Nominal Weight |
20 kg (Tolerance: ±0.5% / ±100g) |
|
Overall Length |
2,200 mm |
|
Shaft Diameter |
28 mm |
|
Sleeve Diameter |
50 mm |
|
Sleeve Length |
415 mm |
|
Grip Section |
1,310 mm |
|
Center Knurl |
120 mm |
|
Knurling |
IWF Specification (1.2 mm Diamond Pattern) |
|
Shaft Material |
42CrMo Alloy Spring Steel |
|
Tensile Strength |
190,000-215,000 PSI |
|
Yield Strength |
165,000+ PSI |
|
Hardness |
40-45 HRC |
|
Rotation System |
8 Precision Needle Bearings + Stainless Steel Bushings (Hybrid) |
|
Shaft Finish Options |
Hard Chrome / Cerakote / Black Zinc |
|
Sleeve Finish Options |
Hard Chrome / Bright Chrome |
|
Straightness Tolerance |
Less than 0.2 mm over full length |
|
OEM / Private Label |
Available (Laser Logo, End-Cap, Custom Packaging) |
Shaft Material & Mechanical Properties
The shaft uses 42CrMo high-grade alloy spring steel subjected to precise heat treatment to deliver high yield strength, dynamic elastic memory (whip), and long-term deformation resistance.
Steel Grade
42CrMo Alloy Steel
Tensile Strength
190,000-215,000 PSI
Yield Strength
165,000+ PSI
Heat Treatment
Quenched and Tempered
Testing Standard
ASTM E8 tensile testing and 10,000+ dynamic drop testing.
Surface Finish Options
Hard Chrome: Maximum durability, chip resistance, and low friction.
Cerakote: Superior corrosion protection (salt-spray tested 500+ hours) available in multiple color options.
Black Zinc / Bright Zinc: Cost-effective corrosion barrier with clean aesthetic appeal.
Manufacturing & Quality Control
Steel Material Inspection: Chemical composition analysis, ultrasonic flaw detection, and raw dimension checks.
Precision Shaft Machining: CNC turning to exact diameter, length, and shoulder profiles.
Knurling: CNC diamond knurling with optical sensor alignment for mark accuracy.
Heat Treatment: Controlled quenching and tempering to achieve target HRC and tensile properties.
Surface Finishing: Electroplating/coating with uniform thickness and salt-spray corrosion validation.
Sleeve Assembly: Automated press-fit bearing/bushing insertion with precise snap-ring retention.
Final Inspection: 100% testing for weight, straightness dial-indicator runout, dynamic sleeve rotation, and drop impact survival.
Factory Inspection Evidence & Documentation
To support distributor procurement, every production run is backed by verifiable factory documentation:
Material Test Reports (MTR): Mill certificates detailing steel grade and heat treatment data.
QC Inspection Logs: Dial-indicator runout charts, dynamic balance reports, and weight scale calibration logs.
Production Capability:
• Monthly Output: 15,000 units
• MOQ: 50 units (Custom OEM)
• Sample Lead Time: 7-10 days
• Mass Production Lead Time: 25-30 days
Certifications: ISO9001 Quality Management System, RoHS coating compliance.
Commercial Applications
Commercial Gym Chains
Durable multi-user strength zones.
Weightlifting & CrossFit Clubs
Dedicated Olympic training areas requiring precise whip and fast sleeve rotation.
Strength & Conditioning Facilities
High-performance athletic training centers.
Fitness Equipment Distributors & OEMs
Turnkey private label programs with custom branding, end-caps, and retail packaging.
OEM & Private Label Options
Branding: Custom laser-etched logo on shaft, laser/printed end-cap inserts, custom color bands.
Packaging: Heavy-duty reinforced cylindrical cardboard tubes, individual poly bags, corrosion-inhibiting VCI wraps, and sea-freight export palletization.
FAQ
Q: What is the difference between an IWF Spec bar and an IWF Approved bar?
A: An IWF Spec bar follows all physical dimensional, knurling, and balance parameters set by the IWF for optimal commercial training. An IWF Approved bar has undergone formal certification and licensing for use in official IWF-sanctioned international competitions.
Q: What is the dynamic drop rating and PSI for this barbell?
A: Engineered with 190,000+ PSI high-tensile 42CrMo alloy steel, the bar is tested to withstand over 10,000 dynamic drops using standard bumper plates on dedicated rubber flooring without permanent bending or structural sleeve failure.
Q: What surface finish offers the highest corrosion resistance for high-humidity environments?
A: Cerakote provides the highest salt-spray corrosion protection (500+ hours), followed by Hard Chrome. For high-humidity commercial gyms, Cerakote or Hard Chrome are highly recommended over standard Zinc options.
Q: Can I customize the logo, knurling depth, and packaging for my brand?
A: Yes. We offer complete OEM and private label services, including laser-etched shaft logos, custom end-cap designs, tailored knurling profiles, and heavy-duty custom-printed tube packaging.
Q: Can I order a pre-production sample, and what is the lead time for bulk orders?
A: Custom pre-production samples are available within 7-10 days for design and quality approval. Once confirmed, full mass production lead time is typically 25-30 days, depending on order quantity.
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