E1 CLASS WEIGHT BOX — Precision Reference Weights by
V-CARE IMPEX

V-CARE IMPEX is India’s leading manufacturer and exporter of E1 Class Weight Boxes, designed for high-precision calibration of analytical balances, microbalances, and laboratory equipment.
All our E1 Class Weights comply with OIML-R111 standards and are meticulously manufactured using non-magnetic stainless steel to deliver exceptional accuracy and stability.

🎯 Trusted globally, V-CARE IMPEX sets the benchmark for calibration accuracy.

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PRODUCT CODE: VCI-E1-1MT200G

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What Is an E1 Class Weight Box?

E1 Class Weights represent the highest level of precision in mass standards, used as reference weights for calibration laboratories.
Each weight undergoes mirror-polishing and surface passivation for optimal resistance to corrosion and magnetic interference.
E1 Class is typically used as a primary reference for verifying E2, F1, and lower-class weights, ensuring traceability to national standards.

 

Key Features of E1 Class Weight Box

• Manufactured according to OIML-R111:2004 standards

• Made from non-magnetic austenitic stainless steel

• Supplied in polished wooden or aluminum cases

• Weight range:

  • 1 mg to 500 mg (wire type weights)

  • 1 g to 20 kg (knob type weights)

• Optional NABL calibration certificate traceable to national standards

• Available as individual weights or complete E1 class sets

• Excellent corrosion resistance and long-term stability

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Why Choose V-CARE IMPEX for E1 Class Weight Boxes

• 🧭 Precision Manufacturing: Every weight is produced on CNC machines and mirror-finished under controlled conditions.

• 🧪 Certified Quality: Each set can be supplied with a NABL calibration certificate traceable to national standards.

• 🌍 Global Reach: Exporting to UAE, Saudi Arabia, Singapore, Qatar, and 20+ countries.

• ⚙️ Complete Product Range: E1, E2, F1, F2, M1, and custom calibration weights available.

• 🔄 After-Sales Support: Re-calibration, adjustment, and storage solutions provided.

• 🏢 Made in India: Proudly designed and manufactured in Mumbai by V-CARE IMPEX.

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Applications of E1 Class Weight Box

• Primary reference for mass calibration laboratories

• Verification of E2 and lower-class weights

• Calibration of analytical and microbalances

• Use in accredited calibration labs and R&D centers

• Metrology institutions, testing agencies, and national standards labs

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Related Products

• E2 Class Weight Box

• F1 Class Weight Box

• F2 Class Weight Box

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CATALOGUE

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Contact Us

📍 V-CARE IMPEX — Calibration & Standard Weights Division
Mumbai, India
📞 +91-9920107524
✉️ sales@vcareimpex.com

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Technical Specifications

• Available in the Sets of 23 Nos. and also Single Weights as per customer requirements.

• Customized sets also Available on request.

• Standard Weight Box includes Weight Sets from 1 mg to 200 g (23 Nos. Set).

• 1 mg to 500 mg (Milligram Weights) shall be Wire Type and 1 g to 20 Kg shall be Cylindrical Knob Type.

• The uncertainty shall be 1/3 the Tolerance.

• All Weights shall be Calibrated from NABL Accredited Lab having ISO 17025:2005 Accreditation.

• E1 Class Weights are ideal for calibrating Micro Balances.

• All Weights are as per OIML - R111 Standards.

• All Weights shall be made from Single Block of S.S. and shall be mirrored polished.

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Shapes Available

• Triangle Shape for 1 mg, 10 mg and 100 mg Weight.

• Square Shape for 2 mg, 20 mg and 200 mg Weight.

• Pentagon Shape for 5 mg, 50 mg and 500 mg Weight.

• Cylindrical Knob Type Available for 1 g to 20 Kg Weights.