Weighing Equipment Calibration Experts – AS 1379 & ISO/IEC 17025Compliant

Independent Scale Services (ISS) is a leading Australian provider of concrete batching plant calibration, industrial weighing equipment services, and load cell repairs, fully compliant with AS 1379 and accredited to ISO/IEC 17025 by NATA. With over 30 years of experience, ISS is trusted by industry leaders across Sydney, Melbourne, and regional Australia.

Our Product Range

  • Core Calibration Services

    ISS specialises in the calibration of:

    •   Concrete Batching Plants – Aggregate hoppers, cement hoppers, water meters, and slump stands calibrated to AS 1379 Clause 3.3.2

    •   Weighing Scales – From precision lab balances to heavy-duty platform scales

    •   Load Cells – On-site or in-house calibration up to 50,000 kg, using deadweight and reference load methods

    •   Hoppers & Silos – NATA-accredited calibration up to 15,000 kg, traceable to 50,000 kg

    •   Liquid Flowmeters – High-accuracy gravimetric method calibration for admixture and water batching systems

    •   Force Gauges & Dynamometers – Analog, digital, and hydraulic calibration for safety and quality compliance

  • Repair & Maintenance Services

    ISS offers complete repair and diagnostic solutions for:

    •   Load cell supply, testing, cabling, and calibration

    •   Weighing indicators: supply, programming, replacement, and calibration

    •   Flowmeter installation, calibration, and maintenance

    •   Fault diagnosis for electrical and mechanical issues

    •   Lightning strike and breakdown response

    •   Installation of junction boxes, summing circuits, surge arrestors, and LCI cards

Featured Products View all

  • Spare Parts – Always in Stock

    To ensure minimal downtime, ISS maintains a wide inventory of components from trusted brands including PT Global, Rinstrum, Anyload, Kelba, Manuflo, and Command Alkon. Stocked items include:

    •   Load cells

    •   Weighing indicators

    •   Junction boxes

    •   Threaded rods & nuts

    •   Flow meters

    •   Moisture balances

  • Why Choose ISS?

    •   Servicing 98% of concrete plants across Sydney

    •   Over 2,830 batching plant jobs completed in the last 5 years

    •   NATA Accredited since 1992

    •   Team of 9 expert technicians with fully equipped calibration trucks

    •   Cloud-based portal for instant access to certificates and service history

    •   Trusted by major clients including Holcim, Boral, Hanson, Hymix, CPB Contractors, and more

Independent Scale Services (ISS) is your one-stop solution for all calibration, repair, and equipment support needs—backed by proven experience, advanced tools, and strict compliance with national and international standards.

Why Is Calibration Important

Load Cell and Weighing

Calibrating Weighing Scales

Calibrating weighing scales and hoppers is essential to ensure accurate
measurements and maintain compliance with industry standards.

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Our Current Clients

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