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GUIDE FOR INJECTION MOLDING MACHINE MANUFACTURERS & DEALERS

Guide for Injection Molding Machine Manufacturers & Dealers

Helps machine manufacturers and dealers configure the right screw and barrel for machine model, clamping force, shot size and customer material.

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Guide for Injection Molding Machine Manufacturers & Dealers

The amount should be calculated by product weight or machine nominal capacity.

Release time:2026-09-22

quick answer

For the equipment selection consultant, describe the material density correction, flow-weight and safety residual reconciliation methods, analyse the risk of overestimating the available capacity of other materials directly using the PS nominal gram and give recommendations for validation of the conversion of volume capacity to the actual resin weight and the retention of a reasonable residual and actual reductive process and buffer.

射胶量应该按产品重量还是机器标称容量计算的英文技术示意图
射胶量应该按产品重量还是机器标称容量计算

In case of impregnation accounting, customers often ask first for price or term, but equipment-selected consultants should first check material density corrections, fluid weights and safety residuals. Only by quantifying these conditions can the standard screws have an interpretable boundary with the choice of a dedicated screw.

The platform parameters are understood separately. Locked-molecular tonnage addresses the pressure of the mould, and the reductive units address the problems of molten volume, pressure, velocity and plasticity, which cannot be replaced by one number. The salesman shall be based on the machine sign, the injection unit specification form and the actual course of the controller, and shall fix the nominal gel mass with the material density. Calculates the nominal value to be converted to the actual condition. The machine often uses PS as a reference for the gel weight, which should be revised by density when using other raw materials; the weight of the product should be added to the main course, traffic separation and a reasonable buffer. The larger the diameter of the screw, the greater the theoretical capacity, but the pressure of injections per unit area under the same hydraulic pressure or servo system will decline and the resolution of the measurement of the small amount of the aerosol may also be variable.

Material analysis cannot remain under PPP, ABS or PA names. The specific plate number, the percentage of the product or mineral filling, the flame-retarding system, the water-bearing requirements, the permitted stay time and the recommended processing temperature should be checked. Differences in the sensitivity of viscosity, wear, corrosiveness and shearing may be apparent in the broad categories of the same material, which change the compression ratio, the three-part ratio, alloy and surface treatment. The focus of the discussion here is material density correction, fluid weight and safety residuals, which must correspond to the customer ' s current production conditions and not be limited to the maximum values in machine samples.

The configuration proposal should be to convert volume capacity to actual resin weight and to retain a reasonable residual amount, rather than using vague descriptions such as “enhanced” or “high performance”. The spiral drawings need to reflect the effective length, three-part scale, depth, compression ratio, tail connection and anti-reverse components; the material programme needs to distinguish the base, surface hardening, alloy layer or coating, and to indicate the pattern of failure for which they are intended.

The cost of the misconfiguration is not only the screw itself, but also the cut-off, the waste of raw materials, the testing of molds, the delay in delivery and the credibility of customers. Precautionary measures around the direct introduction of the PS-named gRegs overestimation of the available capacity of other materials are more economical than the retrenchment of a problem; the vendor can then move from a mere offerer to a partner capable of taking on technical screening.

Upon completion of the project, the actual gel process and buffers were used as delivery conclusions and the size tests, material or thermal treatment certificates, trial modelling records and maintenance recommendations were archived. Sales teams can return after three months or a ton agreement to compare plasticization time, energy consumption, product fluctuations and wear and tear trends. Therefore, a simple logic of “symmetrically-sized screw” should not be applied to the account of the volume of the injection. Only by accounting for products, feedstocks, tonnages, voltage, screw diameter and target cycles will the standard screws have a clear scope of application and the dedicated screws have a reasonable design basis and return on investment.

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According to the resin material, filling ratio, equipment model and product requirements, select a more suitable screw and barrel solution.