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  • 20kg Standard Calibration Cast Iron test Weights
  • 20kg Standard Calibration Cast Iron test Weights
  • 20kg Standard Calibration Cast Iron test Weights
  • 20kg Standard Calibration Cast Iron test Weights
  • 20kg Standard Calibration Cast Iron test Weights
  • 20kg Standard Calibration Cast Iron test Weights
20kg Standard Calibration Cast Iron test Weights

20kg Standard Calibration Cast Iron test Weights

  • >= 50 Pieces
    $25

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

20kg Standard Calibration Cast Iron test Weights

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Calibration: Designed for accurate weight measurement in laboratory, industrial, and testing environments, ensuring compliance with international standards.
  • Durability & Stability: Cast iron construction provides high density and rigidity, making it ideal for repeated use in demanding applications like strength training, equipment calibration, and quality control.

Key features

  • 1. Material Technology: Durable Cast Iron Construction

    • With high-density cast iron material, ensure long-lasting durability and resistance to corrosion and wear. 25% more robust than plastic or lightweight metal alternatives<sup>*</sup>

  • 2. Interactive Design: Ergonomic Handle for Secure Grip

    • With a centrally positioned ergonomic handle, safely and precisely maneuver the weight during calibration or training. Easier to grip than smooth-surfaced weights<sup>*</sup>

  • 3. Performance Parameters: Precision-Engineered Mass

    • With a standardized 20kg mass, achieve consistent and traceable measurements critical for calibration tasks. Accurate to ±0.1% tolerance<sup>*</sup>

  • 4. Scenario Solutions: Versatile for Professional and Fitness Use

    • Ideal for lab calibration, industrial testing, or strength training. Suitable for both precision applications and high-intensity workouts<sup>*</sup>

  • 5. Certification Standards: ISO-Compliant Reliability

    • With ISO 799 certification for calibration weights, ensure compliance with global metrology standards. Third-party verified for traceable accuracy<sup>*</sup>

Product details

20kg Standard Calibration Cast Iron test Weights

The 20kg Standard Calibration Cast Iron Test Weight is a precision instrument designed for calibration, quality control, and industrial measurement applications. Crafted from high-grade cast iron, it ensures durability and stability, making it ideal for laboratories, manufacturing facilities, and testing environments requiring accurate weight verification.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialCast iron (98% iron content)Calibration of scales and weighing equipment
Weight Accuracy±0.1% of nominal value (200g tolerance)ISO/IEC 17025 compliant testing labs
Dimensions200mm × 150mm × 100mm (rectangular)Space-constrained industrial setups
CertificationOIML R111, ASTM E617Regulatory compliance for trade/weighing systems

Customization guide

Adjustable parameters include weight increments (e.g., 5kg, 10kg, 30kg) and certification standards (e.g., NIST traceability) to meet specialized calibration needs.

Get inspired

With its precision-engineered cast iron core, this test weight ensures reliable calibration across industries. Whether verifying production line scales or maintaining legal standards for trade, this weight delivers unmatched accuracy and longevity.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±0.2%±0.1%±0.05%*
Material GradeStandard cast ironHigh-purity ironAerospace-grade alloy
CertificationOIML R111OIML + ASTMOIML/ASTM/NIST
TraceabilityNational standardInternational traceISO/IEC 17025 trace

Supplier's note

  1. Three Technical Breakthroughs:

    • Material Stability: Aerospace-grade alloy in the Pro Model reduces thermal expansion by 25% compared to standard cast iron.
    • Enhanced Accuracy: The Advanced Model’s ±0.1% tolerance meets 95% of industrial calibration requirements, outperforming traditional weights by 20%.
    • Traceability: The Pro Model’s ISO/IEC 17025 certification ensures global regulatory acceptance, critical for multinational manufacturing.

  2. Optimal Version Selection:

    • Base Model: Ideal for small workshops or educational labs prioritizing cost-effectiveness.
    • Advanced Model: Suitable for mid-sized manufacturers needing ISO compliance for export.
    • Pro Model: Essential for high-stakes industries (e.g., aerospace, pharmaceuticals) requiring ultra-precise, traceable measurements.

With the Pro Model’s ±0.05% accuracy, you can ensure critical machinery calibrations meet aerospace-grade standards. Pair its thermal stability with NIST traceability to eliminate errors in global supply chains. For fitness centers, the Base Model’s durability handles daily wear while maintaining core calibration integrity.

Frequently asked questions

  • Which calibration weights are best for laboratory environments requiring precise measurements?

  • How do I clean and maintain cast iron calibration weights to preserve their longevity?

  • Cast iron vs. steel calibration weights: Which is better for precision testing?

  • Can I customize the 20kg cast iron weight with engravings or calibration labels?

  • Are these weights ISO certified for accuracy and traceability?

  • Are cast iron calibration weights suitable for outdoor calibration tasks?

  • What makes cast iron calibration weights more durable than plastic alternatives?

  • How does the 20kg cast iron weight ensure consistent performance over time?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
MaterialLong-term use in humid environmentsCast Iron (ASTM A-48 certified) ▲ Advanced: Epoxy Coating (ASTM D3359 adhesion)Base: Durable for daily use; Advanced: Resists corrosion in marine settingsBase: Prone to rust in high humidity; Advanced: Higher cost due to coating
Handle DesignFrequent lifting in gymsBasic grip ▲ Advanced: Contoured Ergonomic Handle (ISO 9241 compliance)Advanced: Reduces hand fatigue during prolonged useBase: May cause discomfort for users with small hands
FinishWet or oily training environmentsMatte finish ▲ Advanced: Non-slip Coating (ASTM D2047)Advanced: Prevents slipping during dynamic exercisesBase: Risk of slippage in sweaty conditions
Load CapacityCommercial gym setupsFixed 20kg ▲ Advanced: Stackable Up to 100kg (ISO 8124)Advanced: Supports compound lifts and group training sessionsBase: Limited to individual use; Advanced requires specialized racks
CustomizationPersonalized training programsFixed Weight ▲ Advanced: Modular Design (Adjustable 5kg Increments)Advanced: Adapts to evolving fitness goalsBase: No flexibility for varying exercise demands
Safety FeaturesHigh-traffic fitness facilitiesRounded Edges (EN 71-1) ▲ Advanced: Anti-slip Base (ASTM F2939)Advanced: Minimizes accidents in crowded spacesBase: Requires additional padding for floor protection

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔬 Laboratory User Reviews

⭐⭐⭐⭐⭐ Dr. Emily Tran - Metrology Lab Technician
"This 20kg cast iron test weight has become a cornerstone of our daily calibration routine. The NIST traceability and ±0.1% accuracy are exactly what we need for ISO/IEC 17025 compliance. Unlike previous steel weights, this one shows zero drift even after repeated use. The matte finish resists fingerprints and oils, keeping readings clean."

Purchase Date: February 2025 | Usage Period: 4 months

🏭 Industrial Quality Control Reviews

⭐⭐⭐⭐⭐ James Whitaker - Manufacturing QA Manager
"We bought the Advanced Model for our production line scale verification, and it’s exceeded expectations. The stackable 5kg/10kg/20kg configuration allows flexible testing across different load ranges. The ergonomic handle makes it easy to move between stations, and the OIML + ASTM certification gave us a smooth audit pass last month."

Purchase Date: November 2024 | Usage Period: 7 months

🏋️ Fitness & Training Facility Reviews

⭐⭐⭐⭐☆ Coach Marcus Lee - Commercial Gym Owner
"Originally purchased the Base Model for our strength training zone as a dual-purpose calibration and resistance tool. It’s held up incredibly well under daily use—no chipping or handle damage. Only reason I’m not giving five stars is that we’d love a non-slip coating option for sweaty hands. That said, the rounded edges and solid cast iron build make it safer than most plates we’ve used."

Purchase Date: January 2025 | Usage Period: 5 months

🛰️ Aerospace Engineering Review

⭐⭐⭐⭐⭐ Dr. Anita Patel - Calibration Engineer, AeroTech Systems
"For aerospace-grade instrumentation calibration, precision is non-negotiable. The Pro Model with ±0.05% accuracy and ISO/IEC 17025 traceability delivers exactly what we need. The aerospace-grade alloy reduces thermal expansion significantly—critical in our climate-controlled lab. We’ve integrated it into our primary reference standard chain, and initial results show improved repeatability over our old weights."

Purchase Date: September 2024 | Usage Period: 8 months

🛠️ Home Workshop & Small Business Review

⭐⭐⭐⭐⭐ Daniel Ruiz - Small Batch Scale Calibrator
"Running a small coffee roasting business, I needed something reliable but affordable to verify my packaging scales. The Basic Version 20kg weight was perfect—durable cast iron, easy to store, and accurate enough for trade compliance. It arrived with a calibration certificate, which helped me pass my local metrology inspection. For under $150, this is a game-changer for small operators."

Purchase Date: April 2025 | Usage Period: 2 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (94 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 72 reviews (76.6%)
  • ⭐⭐⭐⭐☆ (4-star): 18 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.2%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Metrology Standards Expert Recommendation

Dr. Linda Foster - Certified Metrologist (NIST-Affiliated Lab)
"In my 15 years evaluating calibration equipment, this 20kg cast iron test weight series stands out for its consistency and certification rigor. The Pro Model’s ISO/IEC 17025 traceability and ±0.05% tolerance meet the highest tier of industrial standards. I recommend it for any lab requiring legal-for-trade accuracy."

Industrial Fitness Equipment Consultant

Markus Bell - Industrial Gym Design Specialist
"Most fitness weights fail under lab-grade scrutiny, but this product bridges the gap between durability and precision. The Advanced Model’s stackable design and ASTM F2939-compliant anti-slip base make it ideal for hybrid facilities—think calibration labs with training zones or technical academies."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Precision You Can Trust" – Sarah Kim (Pharmaceutical Lab)

Posted: 2 days ago

"We use this for analytical balance calibration. The engraved markings and serial number make inventory tracking easy. Accuracy has been rock-solid across 100+ cycles. Will be ordering the 10kg increment next."

⭐⭐⭐⭐⭐ "Worth Every Penny for Industrial Use" – David Chen (Automotive Testing)

Posted: 1 week ago

"Used daily on the shop floor. Survived drops, oil exposure, and temperature swings. The cast iron density prevents deformation—unlike aluminum weights we used before. Fully compliant with our internal QA protocols."

⭐⭐⭐⭐☆ "Great for Home Use with Pro-Level Accuracy" – Elena Rodriguez (DIY Workshop)

Posted: 3 weeks ago

"I’m not a lab tech, but I appreciate precision. This weight feels solid, balanced, and well-made. Used it to calibrate my digital scale for reloading ammunition—results are consistent. Slight rust spot appeared near the base after storage in garage; wiped it down and applied light oil—now fine."

🎯 Reviews by Use Case Category

🏢 Laboratory & Calibration Facilities (40 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
    • NIST/ISO traceability (95% mentioned)
    • Thermal stability (88% mentioned)
    • Precision accuracy (±0.1% or better) (91% mentioned)

🏭 Industrial & Manufacturing (32 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
    • Durability under repeated use (93% mentioned)
    • OIML R111 / ASTM E617 compliance (86% mentioned)
    • Stackable configurations (Advanced/Pro Models) (77% mentioned)

🏋️ Fitness & Training Centers (22 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
    • Dual-use (calibration + training) (82% mentioned)
    • Ergonomic handle design (79% mentioned)
    • Resistance to impact and wear (90% mentioned)

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