Plastic stool mould | Rattan stool mould

We finished building some sets plastic stool moulds. These stool moulds are in rattan design, seat are designed in three patterns. The seat patterns are simple and fashion. We believe these new plastic stools will be hot sale products.

plastic stool mould details:

  • plastic stool mould-mould material: 718+P20
  • Plastic stool mould-mould base: S50c
  • plastic stool mould-runner system: cold runner
  • plastic stool mould-machining devices: high speed CNC engraving maching, high speed CNC milling maching

XS Plastic mould have very rich expereince on the plastic stool mould design and building.Firstly our mold designer study stool part design and have correct idea in mind on designing stool mould structure properly. We design optimal cooling circuit,use good mould steel and go to quenching and tempering treatment. This kind treatment will increase steel tenacity,steel hardness and other performance. Like making plastic chair mould and stool mould, we also need to forge steel,to wipe off air holes and inpurity which in steels. We design enough cooling circuit to make sure mold have efficient cooling preformance. High speed CNC engraving and milling machine are used for tooling plastic stool mould.

Welcome contact XS Plastic Mould for plastic stool mould&plastic chair mould.

Techniques of selecting plastic mould material


The working condition of plastic mould is different with cold-punching mould,normally under working on 150-200℃,not only bearing pressure,but also sustain high temperature.Nowadays,according to the differences of plastic mold using condition and tooling method,the followings are the basic performance requests to plastic mould steel.

  1. excellent machinability

Most plastic molds,except EDM tooling,it need cutting machining and benchwork.To extend machining knives’ lifetime,enhance machinability,decrease suface roughness, plastic mold steel hardness should be proper.

  1. Good heat stability

Usually plastic mold spare parts are complex,it’s difficult to machining after quenching treatment.So we need try best to use good heat stability mould steel.After mold steel heat treatment, Because of low expansion,little deformation and very small dimension change,it ensure mould dimension precision and surface roughness.

  1. Good polishing property

High quality plastic molded parts request good polish on the mould cavity.So selected mould steel need less impurity,even minuteness. And it shouldn’t have hard spot defects.

  1. Enough surface hardness and wear resistance

Normally plastic mould steel hardness is less than 50-60HRC,after heat treatment,it has enough surface hardness,to ensure mold has enough rigidity. When plastic injection molding,because plastic material filling and flowing bear higher stress and friction,requesting mold keep good shape precision and dimension precision,to guarantee mould long lifetime. Mould wear resistance depends on steel chemical composition and heat treatment hardness. So increasing mold hardness is good for enhancing its wear resistance.

  1. 50# steel have certain strength and wear resistance

50# steel mostly used for mould base after hardening and tempering treatment. But because its big deformation,it only suitable for making small size and simple plastic parts.