Air Compressor for
Plastic & PET Industry
in Vapi — 40 Bar | Moulding | Extrusion
High pressure compressors (up to 40 bar) for PET blow moulding, VFD screw compressors for injection moulding and extrusion, and CP Airnet piping to eliminate compressed air leaks. RR Enterprise — ISO 9001:2015 · MSME Udyam · Authorised CP Dealer · High Pressure Manufacturer in Vapi.
Plastic & PET
Tier 2 — High PriorityWhy Plastic Manufacturing in Vapi Needs a Multi-Pressure Compressed Air Approach
Vapi GIDC hosts one of India’s largest concentrations of plastic manufacturing units. The cluster includes PET bottle blowing, HDPE and PP container blow moulding, injection moulding of plastic parts and closures, plastic extrusion for pipes and profiles, and thermoforming of packaging sheets. Together, plastics and chemicals form the industrial backbone of the Vapi GIDC cluster.
The defining challenge of compressed air in a plastic manufacturing facility is pressure diversity. Different plastic processes need dramatically different compressed air pressures — and the wrong compressor for any process directly affects product quality and energy cost. A facility that runs PET blowing, injection moulding and extrusion on the same floor may need three separate pressure levels simultaneously: 30–40 bar, 6–8 bar and 4–6 bar.
RR Enterprise is uniquely positioned for Vapi’s plastic industry because we both manufacture high pressure compressors up to 40 bar (for PET blowing) and supply Chicago Pneumatic VFD screw compressors as Authorised CP Dealer (for injection moulding and extrusion). We also supply CP Airnet aluminium piping to eliminate compressed air leaks in large plastic factory distribution networks.
Pressure Requirements for Plastic Processes – One Factory, Multiple Needs
Blow Moulding
Blow Moulding
Moulding
Thermoforming
3 Compressed Air Problems Specific to Plastic & PET Manufacturing in Vapi
These problems are unique to plastic manufacturing — not shared with food plants, textile mills or chemical factories.
Different Plastic Processes Need Different Pressures — Running Them Wrong Wastes Electricity
A plastic manufacturing facility in Vapi GIDC might run PET blowing, HDPE blow moulding and injection moulding simultaneously — three processes that need 40 bar, 12 bar and 7 bar respectively. <strong>If a plant tries to supply all three from a single high-pressure compressor at 40 bar, the energy waste is enormous.</strong> Generating compressed air at 40 bar and reducing it to 7 bar for injection moulding through a pressure regulator means consuming 40-bar energy to deliver 7-bar output. The energy cost penalty for this mistake on a medium-sized plastic factory can be ₹15–30 lakhs per year. The correct solution is dedicated compressors for each pressure range: an RR high pressure booster compressor for PET blowing, and a CP VFD screw compressor for injection moulding and extrusion. Running multiple compressors at the correct pressure for each application always consumes less electricity than running one oversized high-pressure compressor for everything.
Moisture and Oil in Mould Cooling Air Cause Visible Defects in the Finished Plastic Product
In plastic blow moulding and injection moulding, compressed air is used inside the mould cavity or on the mould surface for cooling the part and for ejection. <strong>In PET blow moulding, the air that expands the preform and remains inside the newly blown bottle IS the initial cooling medium for the bottle wall.</strong> If this air contains moisture, it condenses on the inner bottle surface, leaving a visible haze or water mark on the inside of the bottle — a cosmetic defect that causes customer rejection. If the air contains oil aerosols from a non-oil-free compressor, the oil deposits on the inner bottle surface, causing yellowing and cloudiness in clear PET bottles, and potential contamination of the bottle contents. In injection moulding, moisture in the air blown onto the mould surface for cooling causes mould surface rusting over time, which transfers a surface texture defect onto every part moulded from that tool. A refrigeration air dryer and appropriate filtration on the mould cooling air circuit prevents all three of these product quality issues.
Compressed Air Leaks in Large Plastic Factories Waste 20–30% of Compressor Output Silently
Large plastic manufacturing facilities in Vapi GIDC have extensive compressed air piping networks connecting dozens of moulding machines, extrusion lines and auxiliary equipment. Most of these networks were built with threaded galvanised iron (GI) pipe — a piping system that develops micro-leaks at every threaded joint as the plant ages and the piping undergoes thermal cycling. <strong>In an established plastic factory, compressed air leaks at threaded GI pipe joints can waste 20–30% of the compressor's total output silently — meaning the electricity is consumed but the air never reaches the machines.</strong> The plant owner sees rising electricity bills and a compressor that seems to run continuously without providing adequate pressure to the machines. The solution is not a bigger compressor — it is an air leak audit to identify the leak sources, followed by replacement of old GI piping with CP Airnet leak-free aluminium compressed air piping. RR Enterprise provides air leak audit services and CP Airnet piping supply and installation for plastic factories in Vapi.
How RR Enterprise Solves Each of These Problems
RR Enterprise designs the multi-pressure compressed air system: RR High Pressure Compressor (40 bar) for PET blowing, CP VFD Screw Compressor (7–8 bar) for injection moulding and extrusion. Each process gets the correct pressure from a dedicated compressor — eliminating the electricity waste of pressure reduction through regulators.
A refrigeration air dryer removes moisture from the compressed air before it enters the mould cooling circuit. A coalescing filter removes any oil aerosol. Clean, dry air for mould cooling prevents inner bottle haze, mould rust and product surface defects.
RR Enterprise provides air leak audit services for plastic factories in Vapi — identifying every leak point in the existing piping network. We then supply and install CP Airnet aluminium compressed air piping to replace the leaking GI pipe network. Leak-free piping eliminates the 20–30% electricity waste from pipe leaks.
Products We Supply to Plastic Manufacturers in Vapi
CHICAGO PNEUMATIC (AUTHORISED CP DEALER)
For injection moulding (6–8 bar), plastic extrusion (4–6 bar) and general factory utility air. VFD matches motor speed to the actual number of machines running at any time, saving 20–35% electricity versus fixed speed. Variable demand as machines cycle on and off makes VFD ideal for plastic moulding facilities.
For smaller plastic manufacturing units with constant, predictable demand — where all machines run continuously at the same load. Lower capital cost than VFD where demand is genuinely constant. RR Enterprise will assess your factory's machine loading pattern before recommending VFD or fixed speed.
Essential for mould cooling air circuits. Removes moisture that causes inner bottle haze in PET blowing, mould surface rust in injection moulding, and product surface blemishes. Also required for instrument air in extrusion lines where moisture affects process control.
Leak-free modular aluminium compressed air piping for plastic factory distribution networks. Eliminates the 20–30% electricity waste from GI pipe joint leaks. Quick to install with no threading required. Rated for 16 bar — suitable for all plastic manufacturing pressure levels except PET blowing.
RR ENTERPRISE MANUFACTURED PRODUCTS
For PET bottle blow moulding (30–40 bar). Booster type: takes existing 7–10 bar compressed air and boosts to 30–40 bar for PET blowing machines. Manufactured at RR Enterprise's ISO 9001:2015 certified Vapi GIDC facility. Only locally-made high pressure compressor in the Vapi–Silvassa belt. Pan India supply. Faster delivery and service than imported alternatives.
For medium-duty compressed air requirements in plastic factories — utility air for cleaning, maintenance tools, and process applications where a screw compressor is not justified by the load. Also used as the primary stage in two-stage configurations for HDPE blow moulding (10–15 bar).
How Compressed Air Is Used in Plastic Manufacturing — Application by Application
Each plastic process has specific pressure, flow and quality requirements. Getting any one of these wrong affects product quality, cycle time or electricity cost.
PET Bottle Blow Moulding – 30–40 Bar
The PET preform (heated to 95–120°C) is placed in the blowing mould and expanded with compressed air at 30–40 bar. High pressure forces the PET to stretch and conform to the mould in 1–3 seconds. Air must be clean and dry — moisture causes inner surface haze, oil causes yellowing. Only an RR Enterprise High Pressure Booster Compressor provides the 30–40 bar required. Standard screw compressors (max 13 bar) cannot be used for PET blowing regardless of HP rating.
HDPE & PP Container Blow Moulding – 10–15 Bar
HDPE jerry cans, PP containers, industrial drums and automotive parts are blow moulded at 10–15 bar. The extruded parison of molten HDPE or PP is captured in the mould and expanded with compressed air. A two-stage reciprocating compressor or a medium-pressure screw compressor with booster stage is used. Mould cooling after blowing also uses compressed air — dry air prevents mould surface rust that creates surface texture on parts.
Injection Moulding – 6–8 Bar
Injection moulding machines use compressed air for core and cavity cooling blow (directing cooling air onto mould surfaces between shots), part ejection (pneumatic ejector cylinders), and robot part removal. Cycle time is directly affected by mould cooling efficiency. Moisture in cooling air causes mould rust, which creates orange peel texture on part surfaces — a direct quality defect. CP VFD Screw Compressor provides the stable 6–8 bar supply with variable capacity to match the demand pattern across an injection moulding cell.
Plastic Extrusion – 4–6 Bar
Plastic pipe extrusion uses compressed air inside the pipe to maintain the pipe bore diameter during cooling in the calibration tank (sizing mandrel pressurisation). Profile extrusion and sheet extrusion use compressed air for calibration and cooling fixtures. Film extrusion uses internal bubble pressure (IBC) to maintain film bubble diameter. These are continuous-duty, moderate-flow applications at 4–6 bar where a VFD screw compressor provides the best balance of pressure stability and energy efficiency.
Thermoforming of Plastic Sheet
Thermoforming of HIPS, PP, PET and ABS sheets into trays, containers and packaging uses compressed air for the forming blow (pressing the heated sheet into the mould) and for part ejection from the mould. Forming air pressure is typically 4–8 bar depending on sheet thickness and forming depth. Thermoforming is a high-cycle-rate application — a single thermoforming line may consume compressed air at a rate of 500–2,000 litres per minute, making compressor capacity sizing critical.
Plastic Pellet & Powder Conveying
Plastic raw materials — pellets, powders, regrind — are conveyed pneumatically from storage silos or octabins to drying hoppers and then to processing machine hoppers. This pneumatic material handling uses compressed air at 0.5–3 bar (dilute-phase conveying) or a RR Roots Blower for larger volumes. Moisture in the conveying air is absorbed by hygroscopic resins like nylon, ABS and PET, causing splay defects and reduced mechanical properties in the moulded parts.
Why Plastic Manufacturers in Vapi GIDC Choose RR Enterprise
RR Enterprise manufactures High Pressure Air Compressors (up to 40 bar) at our Vapi GIDC facility. For PET blow moulding plants in Vapi, we provide the fastest delivery, shortest lead time and same-day emergency service for high pressure compressor failures — versus 3–5 day lead times from other sources.
RR Enterprise supplies the complete multi-pressure compressed air system: RR High Pressure Compressor for PET blowing, CP VFD Screw for injection moulding and extrusion, CP Airnet piping for leak-free distribution. One supplier, one contact, one service team for the entire factory compressed air infrastructure.
RR Enterprise provides air leak audit services for plastic factories in Vapi. We identify every leak point in the existing piping network, quantify the energy waste in kWh and rupees per year, and provide a piping upgrade proposal showing the payback period for CP Airnet installation.
Moisture in mould cooling air causes product defects specific to plastic manufacturing: inner bottle haze in PET blowing, mould rust in injection moulding, and surface texture on blow-moulded parts. RR Enterprise engineers understand these product quality connections and specify refrigeration dryers correctly for each plastic process.
Plastic moulding lines run continuously in shift-based operations. A compressor failure during a production run stops the line and wastes any in-process material still in the machine barrels. RR Enterprise provides 24/7 emergency response from our Vapi GIDC base — reaching plastic factories in Vapi within 2–4 hours on any shift.
ISO 9001:2015 certified manufacturer and Authorised CP Dealer. MSME Udyam registered. Operating from GIDC Vapi since 2017. Serving plastic manufacturers in Vapi GIDC for over seven years.
Frequently Asked Questions — Air Compressor for Plastic & PET Industry in Vapi
Questions from plant managers, maintenance engineers and purchase heads at plastic manufacturing units in Vapi GIDC.
PET bottle blow moulding requires 30–40 bar of high pressure compressed air. A standard industrial screw compressor (max 13 bar) cannot provide this pressure regardless of HP rating. The correct equipment is an RR Enterprise High Pressure Booster Compressor that takes your existing 7–10 bar compressed air and boosts it to 30–40 bar. RR Enterprise manufactures these at our ISO 9001:2015 certified GIDC Vapi facility — the only local manufacturer in the Vapi–Silvassa belt. Call +91 90999 72929.
Mission
We have a corporate philosophy of delivering high-quality products by implementing the latest technology resulting in unmatched quality standards at competitive prices. The company today is a leading name in the category of rotary screw air compressor, vacuum pump, twin lobe roots blower and vacuum booster particularly.
Vision
We are an Indian manufacturing company that has been producing compressors since 2017. Over the years, At the center of our company is a commitment to putting the customers needs first.
Our Success
We have achieved success today by implementing the latest technology in our design and production. We have left no leaf unturned in offering high-quality, durable and cost-effective products over the years and won the trust and satisfaction from all our clients spread nationally and across the globe.
