The ZKC IWF Standard Competition Plates are precision-engineered for elite Olympic weightlifting. As one of only two IWF-certified equipment suppliers from China, Zhang Kong plates meet the strictest international competition standards — ensuring flawless balance, consistency, and performance trusted by world champions. Explore the full ZKC Weightlifting Collection for matching plates, collars, and platforms.

ZKC Standard Competition Plates Key Features

• Official IWF-Certified
  Fully approved by the International Weightlifting Federation (IWF) meeting global competition requirements.
• Steel Core with Rubber Coating
  A high-strength steel core provides stability, while the outer durable rubber layer ensures safety, shock absorption, and noise reduction.
• Color-Coded for Competition
  Standardized Olympic colors for instant weight recognition.
• Ergonomic Rim Groove
  Easy to grip and handle during loading and unloading, improving both safety and convenience.
• Precision Weight Control
  Each plate is precisely calibrated for consistent performance during international competition.

Specifications

Why Choose Zhang Kong Competition Plates?

• IWF-Certified Competition Plates — Used in official international weightlifting events.

• Trusted by Professionals Worldwide — Proven reliability and accuracy in Olympic-level performance.

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The ZKC Black Rubber Bumper Plates are designed for serious lifters who value durability, accuracy, and performance. Made from high-density rubber with a reinforced steel insert, these plates ensure smooth barbell loading, minimal bounce, and long-lasting reliability in both professional and home gym environments. Explore the full ZKC Weightlifting Collection for matching plates, collars, and platforms.

Key Features

• Classic All-Black Design
  Matte black finish delivers a clean, professional look that complements any training setup.
• Easy-Grip Rim Design
  Integrated outer groove makes handling safer and easier during loading or unloading.
• Premium Rubber Construction
  High-quality rubber provides excellent impact absorption, anti-crack performance, and odor-free durability.
• Precision Calibrated
  Each plate maintains a strict weight tolerance of ±0.8% for consistent balance and training accuracy.

Specifications

Why Choose Zhang Kong Bumper Weights？

• Trusted IWF Heritage: Official IWF-certified weightlifting equipment manufacturer

• Perfect weight accuracy: ensures consistent loading across all training setups.

• Durable and quiet: absorbs impact, protects floors, and minimizes noise.

The post Zhang Kong Black Rubber Bumper Plates 5KG to 25KG appeared first on Gravomax Fitness.

ZKC Colorful Rubber Bumper Weights are precision-engineered for Olympic training and weightlifting competitions. Made from high-density rubber with a reinforced steel center ring, these plates deliver long-lasting durability and consistent weight accuracy. Moreover, the low-bounce design helps protect platforms and reduces impact during repeated drops, supporting both safety and equipment longevity. Each plate features clear colour coding for fast identification during progressive training sessions. Furthermore, the smooth surface and balanced stiffness provide stable bar control, allowing athletes to maintain proper bar path throughout snatch and clean & jerk movements. In addition, the reinforced steel insert enhances plate stability on the barbell, ensuring reliable performance even under heavy volume.

These bumper weights are suited for clubs, performance gyms, and advanced home setups. As a result, athletes can train with confidence knowing their equipment meets the standards demanded by consistent Olympic lifting practice.

ZKCColorful Rubber Bumper Weights Key Features

• Competition Color Coding
  Each plate follows IWF color standards — white 5 kg, green 10 kg, yellow 15 kg, blue 20 kg, and red 25 kg — for easy identification during training or competition.
• High-Density Rubber Construction
  Constructed from premium rubber material that’s tear-resistant, odorless, and anti-aging, ensuring consistent performance over time.
• Reinforced Steel Hub
  50 mm steel insert provides smooth barbell loading and protects against long-term wear.
• Safe Handling Design
  Raised edge groove design allows secure grip when loading or unloading weights.
• Precision Calibrated
  Each plate maintains a ±0.8 % weight tolerance, meeting professional training requirements.

Specifications

Why Choose Zhang Kong Bumper Weights？

• Trusted IWF Heritage — Official IWF-certified weightlifting equipment manufacturer

• Perfect weight accuracy — ensures consistent loading across all training setups.

• Durable and quiet — absorbs impact, protects floors, and minimizes noise.

The post Zhang Kong Colorful Rubber Bumper Plates appeared first on Gravomax Fitness.

The ZKC IWF Men’s Competition Barbell showcases Zhang Kong’s highest level of Olympic engineering. The bar follows full IWF specifications, giving professional lifters the same feel used on international platforms. Its controlled whip supports powerful extension in the snatch and clean, creating a natural rise that experienced athletes rely on for timing and bar path precision. The rotation system delivers a clean, predictable turnover that keeps the catch phase consistent during fast lifts. The knurling provides confident hand placement and remains comfortable across high-volume training. Every component reflects a commitment to accuracy, stability, and long-term performance. The bar is used in weightlifting clubs, national training facilities, and high-performance centers that require equipment built for elite standards.

Explore the full ZKC Weightlifting Collection for matching plates, collars, and platforms.

Key Features

• IWF-Compliant Design
  Manufactured to exact IWF men’s barbell specifications: 28 mm shaft diameter, 220 cm length, and 20 kg weight.
• Ultra-Smooth 10-Bearing System
  Ten precision bearings ensure flawless sleeve rotation and reduced torque, allowing explosive lifts with maximum control.
• High-Tensile Elastic Steel
  Built with premium spring steel rated at 220 000 PSI, providing exceptional elasticity and consistent whip under heavy loads.
• Fine 1.2 mm Knurling
  Precision knurling pattern ensures secure grip and minimal abrasion — ideal for clean & jerk and snatch.
• Durable Chrome Finish: Full chrome plating provides long-lasting protection against oxidation, maintaining a professional appearance even in high-volume use.

Specifications

Why Choose Zhang Kong IWF Men’s Competition Bar?

• Trusted Competition Heritage — Zhang Kong (ZKC) has been the official supplier for multiple international competitions, renowned for precision and reliability.

• IWF-Validated Standards — Every detail, from shaft stiffness to knurl depth, is engineered for performance under competition rules.

The post ZKC IWF Men’s Competition Bar appeared first on Gravomax Fitness.

The ZKC IWF Women’s Competition Barbell delivers the same world-class performance and craftsmanship trusted in IWF-certified competitions. Lightweight, flexible, and perfectly balanced, it offers exceptional responsiveness and control for technical lifts.

Key Features

• IWF Women’s Specifications
  Meets all competition standards — 25 mm shaft diameter, 2010 mm length, and 15 kg weight.
• 10-Bearing Rotation System
  Provides ultra-smooth sleeve spin, ensuring efficient turnover and reduced wrist strain during snatch and jerk transitions.
• High-Elastic Spring Steel Core: Rated at 220 000 PSI tensile strength, maintaining the right balance between flexibility and stability.
• Fine 1.2 mm Knurling: Delivers a comfortable yet secure grip, ideal for repetitive training or competitive platforms.
• Chrome Finish with Professional Polish
  Corrosion-resistant, sleek, and built for the long term in high-performance training environments.

Specifications

Why Choose Zhang Kong IWF Women’s Competition Bar?

• Trusted Competition Heritage — Zhang Kong (ZKC) has been the official supplier for multiple international competitions, renowned for precision and reliability.

• IWF-Validated Standards — Every detail, from shaft stiffness to knurl depth, is engineered for performance under competition rules.

The post ZKC IWF Women’s Competition Bar appeared first on Gravomax Fitness.

The ZKC IWF Women’s Training Barbell is built to the same specifications trusted on international platforms, delivering consistent rotation, balanced whip, and durable construction for daily Olympic weightlifting training. Designed for women athletes seeking a responsive 15 kg bar, it mirrors the feel of an elite competition barbell while maintaining the reliability needed for repeated technical work.

Key Features

Smooth Olympic Rotation

Six precision bearings create a fluid, stable sleeve rotation that reduces torque on the wrists and shoulders during explosive lifts.

25 mm Female-Specific Shaft

Built to IWF women’s standards with a 25 mm shaft diameter for a controlled, secure grip during fast turnover movements.

Elastic High-Strength Steel

Constructed from premium spring steel engineered to maintain straightness, rebound, and durability under repeated loading.

Refined Training Knurling

The medium-depth knurl pattern provides confident traction without being abrasive — ideal for high-volume technique training.

Durable Protective Coating

Finished with a corrosion-resistant coating that maintains appearance and structural integrity under long-term use.

IWF Standard Dimensions

Manufactured to match competition geometry, ensuring a familiar, consistent feel across all Olympic lifts.

Specifications

Why Choose the ZKC IWF Women’s Training Barbell?

• International Weightlifting Heritage — ZKC has supplied multiple world-stage competitions and is known globally for accuracy and reliability.

• Competition-Matched Feel — Designed with the same dimensional consistency and rotational response found in elite IWF bars.

• Built for Daily Performance — Stable, smooth, and resilient for long-term training cycles.

The post ZKC IWF Women’s Training Barbell appeared first on Gravomax Fitness.

The ZKC IWF Men’s Training Barbell mirrors the same construction standards as ZKC’s official competition bar, offering professional-grade performance for intensive daily training. Designed for Olympic lifts, this barbell combines world-class spin, tensile strength, and knurl precision—making it the go-to choice for athletes and training centers preparing for competition.

Key Features

• IWF Training-Standard Design
  Replicates the exact feel and geometry of the official competition bar—ideal for athletes refining technique and strength under authentic conditions.
• 10-Bearing Rotation System
  Equipped with 10 high-precision bearings, ensuring ultra-smooth sleeve rotation and reducing wrist torque during high-speed lifts.
• Elastic Spring Steel Construction
  With a tensile strength of 220 000 PSI, this bar delivers the perfect whip response and durability for long-term, heavy training cycles.
• 1.2 mm Knurling Depth: Provides optimal grip security while maintaining comfort through repeated volume sessions.
• Full Chrome Finish: Durable, corrosion-resistant chrome coating maintains a professional appearance and friction balance over time.

Specifications

Why Choose Zhang Kong IWF Men’s Training Barbell？

• Trusted Competition Heritage — Zhang Kong (ZKC) has been the official supplier for multiple international competitions, renowned for precision and reliability.

• IWF-Validated Standards — Every detail, from shaft stiffness to knurl depth, is engineered for performance under competition rules.

The post ZKC IWF Men’s Training Barbell appeared first on Gravomax Fitness.

The Zhang Kong PL-70B2 Combo Rack is a competition-grade powerlifting rack designed for elite bench press and squat performance.
This electroplated stainless-steel edition offers exceptional durability, precision adjustment, and a refined professional finish that meets international powerlifting standards.

Key Features

• Premium Electroplated Construction
  Crafted from stainless-steel square tubing with a durable electroplated finish, the rack resists corrosion and maintains a polished professional look through heavy training and competition use.
• 25 mm Micro-Adjustment System
  Both bench and squat uprights feature 25 mm hole spacing for precise height adjustments.
  Each setting is laser-engraved for easy and repeatable setup during competitions.
• Adjustable Handles & Support Arms
  Integrated adjustable handles allow users to fine-tune rack width and height smoothly.
  The heavy-duty arms lock firmly in place, ensuring full bar stability and safety during heavy lifts.
• Non-Slip Pedal Platforms
  Diamond-pattern anti-slip foot pedals provide a secure base for spotters and lifters, minimizing movement and enhancing stability under load.
• High-Density Competition Bench Pad
  The bench surface features high-density foam and premium synthetic leather for firm support and long-term comfort.
  Pad thickness ensures optimal pressing mechanics and durability under repeated impact.
• Dual Function Design
  Combines bench press and squat rack functions in one integrated structure.
  Quick-release pins make switching between exercises fast and effortless—ideal for both gym setups and powerlifting events.

Specifications

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The ZKC Jerk Rack Platform is purpose-built for elite Olympic lifting and strength training. With its durable steel frame, thick rubber surface, and dedicated plate storage area, this rack provides exceptional stability and safety for performing jerk lifts, push presses, or power work. Engineered for precision and durability, it’s a reliable solution for national-level training facilities and serious athletes.

Key Features

• Heavy-Duty Frame Construction: Built from thick 50 × 50 mm steel tubing and reinforced with a solid rubber top.
  The structure supports up to 500 kg while maintaining balance and vibration control during every lift.
• Integrated Barbell Plate Storage: Features 10 plate slots with 80 mm spacing, making it easy to load and unload weight plates efficiently during training.
• Shock-Absorbing Rubber Surface: A thickened rubber top sheet effectively cushions impact when barbells are lowered, reducing noise and equipment wear.
• Electrostatic Powder Coating: Surface treated with anti-oxidation coating to prevent rust and extend service life, even under heavy daily use.

Specifications

Why Choose Zhang Kong Jerk Rack Platform?

Officially engineered by Zhang Kong (ZKC) — supplier to Olympic and national weightlifting programs.
Its robust design, precision craftsmanship, and athlete-focused functionality make it a trusted choice for high-performance training environments.

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