Once accuracy and speed requirements are matched to your line, the remaining question is what a checkweigher actually costs and what to confirm before ordering — particularly for compliance-critical applications where calibration and traceability matter as much as the equipment itself.
What Drives Cost
Speed and accuracy class. Higher line speed (toward the 200 packages/minute ceiling) combined with tighter accuracy (toward ±0.5g) needs more sophisticated load cell and weighing platform technology than a lower-speed, wider-tolerance configuration.
Weight range. Models are typically optimised for a specific band within the 50g–50kg range — a checkweigher spec'd for very light packages isn't the same unit as one spec'd for heavier product, even if both fall within the broad range.
Reject mechanism. Pusher arm, air-blast, and drop-gate mechanisms differ in cost and complexity — air-blast in particular requires a compressed air supply, an added utility consideration.
Certification. OIML R51 compliance is standard on ENZAC's range, but confirm this explicitly if weight compliance is a regulatory requirement in your market — it isn't universal across every checkweigher on the market.
Data integration. Ethernet/IP or Modbus TCP connectivity for ERP integration adds commissioning scope beyond a standalone unit, but is often worth the investment if fill trend data feeds into your quality system.
Installation Scope and Timeline
Installation covers structural mounting and integration into your existing conveyor line, load cell calibration, reject mechanism commissioning and testing, and — where specified — ERP connectivity setup. Ask for a realistic timeline broken into delivery, mechanical installation, calibration, and line integration testing with your actual product, rather than a single lump-sum estimate.
Confirming Accuracy Holds Up at Your Actual Line Speed
A checkweigher's accuracy figure depends on the speed it's running at — the tightest accuracy applies at lower speeds, and widens somewhat toward the maximum rated speed. Confirm your supplier has specified the unit against your actual required line speed, not a generic accuracy figure that assumes a lower speed than you'll actually run.
After-Sales Support to Confirm Before You Sign
- Calibration — checkweighers need regular calibration to maintain accuracy and OIML compliance. ENZAC provides calibration services for weighing equipment including checkweighers, with the note that ENZAC is working towards SIRIM accreditation for calibration services — procedures are aligned with SIRIM requirements and ISO 17025 principles, with certificates traceable to national standards. Confirm recommended calibration frequency for your throughput and regulatory context.
- Spare parts — load cells, reject mechanism components, and conveyor belting are the parts most likely to need attention over service life. Confirm stock availability and lead time.
- Service and maintenance — scheduled preventive maintenance including calibration checks extends accuracy reliability. Confirm response time for a breakdown callout.
ENZAC provides spare parts supply, service and maintenance (including annual maintenance contracts), and calibration as ongoing services for the checkweighers it supplies, and separately for third-party checkweighers of the same type.
Warranty Terms
Confirm coverage (frame, conveyor mechanism, control system) versus exclusions (load cells under continuous high-speed duty, which can be a wear item depending on duty cycle), the warranty period, and whether the clock starts at commissioning sign-off or shipment.
Review the full Checkweigher equipment page for configuration and certification detail.
Ready to talk about your checkweigher?
ENZAC supplies, installs, and supports checkweighers in Malaysia — sized to your product weight range and line speed, OIML R51 compliant. Send us your product and line details and we'll return a specification, quote, and installation timeline within 2 working days.