Talking about Recycling in the Clean Room - Weimeng customizes a "Internal Circulation" solution for pharmaceutical packaging for SGH in France

The pharmaceutical packaging industry is standing at a delicate crossroads: to the left is the clean room red line of 'waste not leaving the workshop', and to the right is the cost and environmental cost of 'waste not being recycled'. And Weimeng helped SGH find a straight path.

In the pharmaceutical packaging industry, there is an unspoken 'dilemma':

Is waste transported out of the cleanroom for recycling?

　　The risk of cross contamination is extremely highThe transportation cost is expensive

Stay in the workshop and reuse directly?

　　The quality of recycled materials is unstableFluctuations in melt viscosity, once causing a deviation in the weight of the medicine bottle, are unacceptable quality accidents for pharmaceutical customers who package pills by weight.

　　Waste does not leave the workshopOrWaste is not recycled

This difficult topic was successfully solved by Weimeng's online recycling closed-loop system at the Iser plant of SGH Medical Pharma Group in France.

　　01In a Level 7 cleanroomEmbarrassing waste

SGH is a French company that has been deeply involved in the field of pharmaceutical plastics for nearly 40 years. Its products cover drug delivery devices, primary packaging, respiratory and diagnostic consumables, and haveISO 13485、GMP 及 FDA DMFWith authoritative certification, our clients cover pharmaceutical and diagnostic companies worldwide.

It is located in the factory area of Izel, which isHDPECore production base for pharmaceutical bottles:

　　28 injection molding machines3 blow molding machinesThree shifts of uninterrupted production

　　16 specificationsSimultaneous mass production of medication bottles

The workshop strictly followsGrade 7 and 8 cleanroomsstandard

In such an environment, the unqualified raw materials generated during startup debugging and the billet edges and corners generated during trimming have become "awkward existences" on the production line.

The more intermediate links there are, the higher the GMP risk. What's more troublesome is that the quality of recycled materials is unstable, and the final product quality is uncontrollable. ”

　　How to turn 'uncontrollable' into 'controllable'?This is the starting point for the involvement of the Weimeng technical team. We are well aware that closed-loop recycling of pharmaceutical packaging is not simply about "saving money", but rather aboutAbsolute control over the entire lifecycle of materials.

　　02Mighty Plan:Establish a closed loop before risks occur

For the harsh working conditions of SGH, Weimeng provides a setFully enclosed online recycling closed-loop process.

Next to three blow molding machines, Weimeng's customized material flow system allows waste to be processedNever land, never leave the workshop：

Core One

G-Max XL shredder

|Overcoming the pain points of "thermal degradation"

If the temperature of HDPE waste is too high during crushing, it can cause molecular chain breakage, change the melt index, and ultimately amplify as a deviation in bottle wall thickness.

➤Low temperature crushing designThe waste is first pre cooled by a long conveyor belt with segmented fans,The crushing bin is equipped with a water-cooled structureCompletely avoid high-temperature clumping.

➤Low speed uniform crushing：240 revolutions per minuteThe motor speed, combined with a large-sized flywheel, significantly increases processing capacity under the same energy consumption. Paired with radial arrangement of 8mm straight holesSieve(Available on both sides, doubling the service life) and angled blades ensure uniform and fine regenerated particles, with extremely low dust and debris.

Core 2

Gravimax weighing formulaMixer

|Overcoming the pain point of 'weight deviation'

The proportion of recycled materials will directly change the viscosity of the melt. Equipped with the Weimeng Gravimax series mixerReal time Weighing (RTLS) TechnologyAbandoning the common timing cutting in the industry, it achieves two-stage high-precision weighing cutting.

➤Accurate ratioMixing ratio of recycled materialsAccurate control within 20% -30%section.

➤Intelligent compensationWhen the inventory of recycled materials is insufficient, the system will automatically increase the amount of raw materials and colorants added to ensure that the quality of each batch of mixed raw materials is consistent.

　　03Very little human interventionEnsure continuous production

In the current era of scarce skilled workers and rising labor costs, the Weimeng system has minimized the "human" factor.

　　·Fully automatic conveying

The waste material is transported, crushed, mixed and fed into the recycling hopper, and operates automatically in a closed manner throughout the process, without the need for manual handling or intervention

　　·Intelligent anti blocking

Real time monitoring of the crusher motor load. When the load is too high, the belt will automatically stop and prevent blockage. After returning to normal, it will automatically restart

　　·Full warehouse self dumping

The silo is equipped with a full material recognition function, which automatically unloads when the silo is full, ensuring uninterrupted and continuous production

green transition

It's never a sacrifice of quality

Zero sum game of changing environmental scores

When recycling is truly integrated into the production process

Environmental Protection, Cost and Compliance