custom cast iron test weights
Our custom cast iron test weights are precision-manufactured to OIML and ASTM standards, providing accurate and reliable mass references for scale calibration, laboratory testing, and industrial weighing applications. Available in weight classes M1, M2, and M3, with individual weights ranging from 1kg to 5000kg. Each weight can be custom engraved with your specified value, logo, or serial number. OEM and ODM orders are supported with full calibration documentation available upon request.
*Provide your application requirements—such as stress conditions, materials, size range, and even product name. We are always available for customization, so please contact us directly.
Introduction
Why Choose Our Cast Iron Test Weights?
OIML & ASTM Certified Accuracy — Our test weights are manufactured to meet OIML R111 and ASTM E617 standards, ensuring traceable accuracy for legal-for-trade and laboratory calibration use across M1, M2, and M3 accuracy classes.
Wide Weight Range — From 1kg bench weights to 5000kg deadweight calibration blocks, we cover the full spectrum of industrial and commercial calibration requirements in a single source.
Custom Engraving & Marking — Weight value, accuracy class, serial number, and customer logo can all be precision-engraved or cast directly into the surface for permanent, tamper-evident identification.
Durable Cast Iron Construction — Produced from high-grade grey iron with a black lacquer or epoxy coating, our test weights resist corrosion and surface damage while maintaining dimensional stability over long service life.
Multiple Handle Styles Available — Grip handle, hooked handle, leaf handle, and knob handle designs available to suit different lifting and handling requirements across weight ranges.
Specifications
Item Detailed Specifications & Features Product Name Custom cast iron test weights Scope of Services Industrial scale calibration, elevator load testing, crane pressure testing, laboratory verification, weighbridge verification, forklift scale correction. Accuracy Class Compliance with OIML R111 international standards Class M1, M2, M3; Customization for ASTM E617 standards available. Weight Range 5kg, 10kg, 20kg, 25kg, 50kg (Lock/Handheld type)
100kg, 200kg, 500kg, 1000kg, 2000kg, 5000kg (Heavy-duty/Slotted type).Materials High-quality Grey Cast Iron (HT200/250);
Features: Dense structure, pore-free, uniform density (approx. 7.2g/cm³).Machining & Design Casting: Precision Sand Casting;
Finishing: Bottom or side adjustment cavity for easy maintenance and recalibration;
Handling: Built-in forklift slots for 500kg+; Stainless steel handles for 20kg and below.Industries Metrology institutes, logistics & transport, construction sites, elevator maintenance, steel mills, ports, pharmaceutical and food factory equipment calibration. Surface Treatment Industrial-grade Dual Protection:
1. Anti-rust Primer
2. Epoxy Coating (Colors: Black, Grey, Red, etc.);
Features: High hardness, scratch resistance, industrial corrosion resistance.Inspection Facilities High-capacity Mass Comparators, Standard E2/F1 Master Weights, Coordinate Measuring Machine (CMM), Hardness Tester, Spectrometers. Our Advantages 1. Long-term Stability: Artificial aging treatment eliminates internal stress, ensuring constant weight for years.
2. Structural Optimization: Stackable design saves storage space and provides stability during load testing.
3. Cost Control: Optimized cost-performance for high-mass testing; 10-15 years service life.
4. Rapid Response: Regular stock for standard specs; global logistics support.
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I don't have complete drawings, can I send inquiry?
Yes, we can help you analyze based on your description, samples and photos.
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