Block Mould Troubleshooting and Product Defect Guide

Troubleshooting guide overview

When a production problem occurs, check the mold together with the concrete mix, machine settings, and pallet condition. Note whether the issue affects one cavity or the entire production pallet.

Before cleaning, inspecting, or adjusting components, isolate the machine and secure raised parts according to the equipment manufacturer's instructions.

Blocks Stick or Break During Demolding

• Check for concrete buildup, damaged forming surfaces, and incorrect mold alignment. Review mix consistency, filling, compaction, and demolding settings.

• If the defect repeatedly appears in one cavity, inspect that area first. If it affects all products, review the overall production conditions.

Block Dimensions or Height Are Inconsistent

• Inspect cavity wear, tamper components, pallet condition, and support surfaces. Check material distribution and compare mold alignment and clearances with the approved drawings.

• Measure products from several positions to identify whether the variation follows a consistent pattern.

Product Surfaces or Edges Are Damaged

• Inspect the corresponding forming surfaces for buildup, wear, or damage. Establish whether the defect appears during forming, demolding, or subsequent handling.

• Clean using approved methods and review the relevant production settings before making adjustments.

The Mold Moves, Makes Abnormal Noise, or Does Not Lock Correctly

• Stop operation and inspect the mounting arrangement after isolation. For bolted systems, check seating and fasteners; for quick-change systems, check locating surfaces, clamps, and locking indications.

• Do not continue with unintended component contact, insecure mounting, or an unresolved locking fault.

Mold Wear Is Excessive

• Check alignment, aggregate abrasiveness, cleaning practices, and operating conditions. Compare current measurements with previous inspection records and the supplier's allowable wear limits.

• Contact HAWEN before grinding, welding, or modifying worn components.

Technical Support

• Provide the mold identification, machine model, defect photographs, and a brief description of when the problem occurs. Include recent changes to materials, settings, or tooling.

• After corrective work, complete the required setup checks and trial production before returning to routine operation.

Contact technical support

Contact HAWEN with the mould identification, machine details and inspection records for technical support.