The hollow block mold is a critical piece of equipment for producing uniform concrete masonry units used in walls, fences, and foundations. When sourcing durable concrete wall moulds, you need a supplier that guarantees tight tolerances and long service life. We design and manufacture precision hollow block molds from high-grade Q345 structural steel, featuring heat-treated side plates and wear-resistant cavity liners. Our concrete block mold lineup covers standard sizes including 4-inch, 6-inch and 8-inch hollow blocks, along with custom interlocking and split-face profiles. For contractors looking at cost-effective options, we keep a ready stock of concrete block moulds for sale, shipped with full technical documentation and after-sales support. Equipped with quick-change wear parts and adjustable compaction depth, these molds integrate seamlessly into various automated and semi-automated block making machines. Compared to conventional cement block moulds, our heat-treated version delivers up to 40% longer service life, significantly lowering replacement frequency and downtime.
Our hollow block mold is built around a modular cassette design that allows operators to swap cavity configurations in under 15 minutes without dismantling the entire assembly. The core pulling mechanism uses chrome-plated hydraulic cylinders guided by hardened linear bearings, ensuring smooth ejection even with low-slump concrete mixes. Spec data confirms a cavity count ranging from 2 to 12 blocks per cycle depending on pallet size, with wall thickness precision held to ±0.3 mm and overall mold dimensions of 1190×800×280 mm for the 6-block configuration. The cavity plate hardness is rated at HRC 52–56 after vacuum quenching, paired with Ni-Cr alloy wedges and anti-abrasion wear strips at all high-friction points. Cycle time averages 18–22 seconds under normal pressure and vibration settings. Vibration motor mounting brackets accept industry-standard rotary vibrators up to 3.6 kN centrifugal force, and the dump valve manifold is pre-drilled for 3/4-inch BSPP quick couplings. All bearing journals are grease-lubricated and fitted with double-lip polyurethane seals to prevent cement slurry ingress. Below is a summary of key model parameters.
| Model | Cavity Count | Block Size (mm) | Pallet Size (mm) | Weight (kg) |
|---|---|---|---|---|
| HM-4-6 | 6 | 400×200×200 | 950×550 | 860 |
| HM-6-5 | 5 | 600×200×200 | 1100×550 | 980 |
| HM-8-4 | 4 | 800×200×200 | 1250×600 | 1120 |
| HM-4I-8 | 8 | 400×150×200 (interlock) | 1100×500 | 790 |
| HM-6S-5 | 5 | 600×200×150 (solid core) | 1150×550 | 1020 |
