Plantable Block Mould
2.Hardness for shoes:HRC59-62
3.Carburized layer thickness:1.3-1.5mm
4.Unilateral clearance between presser foot and mold cavity: 0.2 mm ≤ Unilateral clearance ≤ 0.4mm
5.Flatness of the whole board: ≤ 0.5mm
6.Deviation in length and width dimensions of a single cavity model: -0.3 to+0.3mm
7.The dimensional deviation of the height (filling depth) of the lower model cavity is ± 0.5mm
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Product Details ofPlantable Block Mould
plantable block mould
What Is a Plantable Block Mould?
A plantable block mould is a steel tool that mounts onto a block making machine. The mould cavity is shaped to produce blocks with hollow cores or open cells. After the blocks are laid, these cells are filled with topsoil and seeded with grass or other vegetation.
The resulting surface supports pedestrian and vehicle traffic while maintaining a green appearance. Water drains through the open cells into the ground below, reducing runoff and recharging groundwater.
UNIK plantable block moulds are CNC machined from wear resistant steel and heat treated to achieve high surface hardness while maintaining a tough core. This combination delivers long service life and consistent cell geometry across thousands of production cycles.
Types of Plantable Block Moulds
Single Cavity Moulds
Used for smaller production runs or for producing large individual blocks. Suitable for specialized projects or for customers with lower volume requirements.
Multi-Cavity Moulds
Two, three, or four cavities per mould. Increases production output per machine cycle. Recommended for commercial and industrial applications.
Interlocking Designs
Moulds that produce blocks with interlocking edges. The finished blocks lock together laterally, creating a stable mat that resists displacement under load.
Custom Cell Patterns
UNIK can manufacture moulds with custom cell shapes, sizes, and arrangements based on customer drawings or samples.
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Why UNIK for Plantable Block Moulds
UNIK has been manufacturing brick machines and molds since 2010. The company is located in Quanzhou, Fujian, one of China's most established manufacturing regions for construction equipment. UNIK exports to 28 countries and has built a reputation for delivering moulds that fit correctly and last longer.
UNIK does not sell generic "one size fits all" moulds. Every mould is built for a specific customer's machine. UNIK uses real heat treatment, not simple quenching. UNIK machines radiused corners instead of leaving sharp stress risers. UNIK finishes surfaces to Ra 1.6 instead of leaving rough machining marks.
These details are not expensive upgrades. They are UNIK's standard.
Technical Features of UNIK Plantable Block Moulds
Every UNIK plantable block mould is built around a set of technical standards that prioritize durability and precision.
Steel Grade – UNIK uses 42CrMo steel for standard concrete mixes. For highly abrasive mixes containing sharp sand, recycled aggregates, or stone dust, tool steel grades such as Cr12MoV are recommended. The steel is selected based on the customer's specific material and production volume.
Heat Treatment – Each mould undergoes a carburizing process that hardens the surface layer to HRC58-62 while the core remains at HRC35-40. The hard surface resists abrasion from concrete. The tough core absorbs vibration from the block machine without cracking.
Corner Radius – All internal corners of the cavity are machined with a 3mm to 5mm radius. Sharp corners concentrate vibration stress and lead to fatigue cracks. A radiused corner allows stress to flow around the curve, eliminating this failure point.
Surface Finish – Cavity surfaces are finished to Ra 1.6 or better using CNC machining. A smooth finish allows green blocks to release cleanly without sticking. It also reduces wear because smooth surfaces erode slower than rough surfaces.
Dimensional Tolerance – Critical dimensions are held to ±0.1mm. This ensures that every plantable block produced is identical to the previous one. Consistent cell size and wall thickness are essential for proper interlocking and load distribution.
Mounting Interface – The bolt pattern, locating pins, and overall envelope dimensions are matched to the customer's specific block machine. UNIK does not sell generic moulds that "should fit." Every mould is built to fit the machine it will run on.
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