Good Manufacturing Practices:
Rotomoulded parts which ensure a satisfied customer is the first priority at GZMPL Good Manufacturing Practices are at heart of GZMPL’s operations.This ensures timely delivery of a product conforming to customer specifications at the right place and at the right price without defects after elimination of waste, conforming to customer’s requirements.
At GZMPL we encourages a culture of continuous improvement through Kaizen, 5S, TPM, QAP and JIT
GZMPL has been an ISO 9002-1994 certified company since 1997 and is currently certified under the ISO 9001-2000 standard by Indian Registra of Quality Standards (IRQS) at present.Some of our customers viz: VOLVO, John Deere, Mahindra Renaultalso audit us as per there internal norms and we have been able to meet their quality specifications.

Rotational Moulding.

Internal procedures guarantee product quality and process management. Production personnel and quality experts are trained to eliminate the common problems encountered in rotational moulding:viz
Flashing, underheating, blow holes, porosity, dimensional stability, warpage, , impurities, seam lines, discoloration, etc.

Competence with rotational moulding parameters means that at any part production rate, optimal duplication of dimensions, aspect and functionality can be maintained.

All the parts produced are subjected to quality control at the workstations. Simple and reliable, the level of control is chosen according to the demands of the application.

Visual inspection, weight, water tightness and dimensional checks, mechanical , physical and chemical testing is done as required. There are some of the tests carried out either inhouse or at external laboratories.The inhouse designed software provides part traceability from operator, shift, and material utisised. What is rotomoulding?

Architectural principle of carrousel rotational moulding machine

What is Rotomoulding?

FROM POWDER TO PART
In a rotational moulding machine, the mould moves successively through three separate work zones: These zones correspond to the different stages of manufacture of rotationally-moulded part:

1 : loading / unloading zone
2 : oven
3 : cooling zone

The first stage consists of putting a polymer, in powdered form, into a mould.
The second stage consists of melting the polymer. The mould is placed in the oven at a certain temperature and rotated around two perpendicular axis (biaxial machine)  for as long as necessary until the polymer is fully melted. At the end of this stage, the melted polymer completely covers the inner surface of the mould.
To obtain a rigid part, the polymer must crystallise. This happens in the cooling zone.
After , the part can be demoulded stripped. The mould is then ready to make a new part can be stripped. The mould is then ready to make a new part.