+91 98765 43210 info@patelengineeringworks.com
ISO 9001:2015 Certified
Pioneers in Precision Extrusion Screws Since 1982

Engineering Excellence in Screw Barrels & Extrusion Tech

Patel Engineering Works delivers ultra-precision Single & Twin Screw Barrels, Injection Moulding Screws, and Bimetallic Barrels built to maximize output and resist abrasive plastic extrusion.

Explore Products
40+
Years Experience
12,000+
Barrels Delivered
25+
Export Countries
Nitrided 68-72 HRC
CNC Precision: ±0.01 mm
Bimetallic Anti-Wear Alloy
Max Diameter:
Ø 14 mm to Ø 300 mm
Max Length:
Up to 6,000 mm Length
Since 1982 in Ahmedabad

Uncompromising Quality in Heavy Engineering

Patel Engineering Works has established itself as an industry benchmark in the manufacturing, precision machining, gas nitriding, and hard-facing of plastic extrusion screws and barrels.

EN41B Musco Alloy Steel sourced exclusively from certified mills.
Ion Gas Nitriding process achieving 68 to 72 HRC depth up to 0.7mm.
Custom Flight Geometries: Barrier, mixing pins, Maddock, and vented designs.
100% Guaranteed
Material & Hardness Test Certificate
About Patel Engineering Works

Reliable Extrusion & Injection Screw Barrels Built to Last

Equipped with state-of-the-art CNC screw milling machines, deep-hole boring machines, precision honing, and internal grinding capabilities, we manufacture components tailored for maximum plasticizing efficiency, low energy consumption, and superior wear resistance.

Whether you process virgin resins, filled polymers (calcium, talc, glass-fiber), or recycled plastic flakes, our engineers customize screw profiles and metallurgical coatings to prevent degradation and downtime.

CNC Precision Machining

Multi-axis CNCs ensure exact pitches and smooth transitions.

In-House Gas Nitriding

Controlled atmospheric furnaces for deep, uniform case hardness.

Our Core Manufacturing Line

Precision Screws & Barrel Assemblies

Manufactured strictly according to OEM drawings, Japanese/German standards, and custom reverse-engineered plant requirements.

Bestseller
Extrusion Plant

Single Screw & Barrel Set

Ideal for blown film plants, HDPE/PPR pipe plants, sheet lines, and profile extrusion machines.

  • Material: EN41B (Musco / Standard)
  • Hardness: 65 - 70 HRC Nitrided
  • Sizes: Dia 18mm to Dia 250mm
PVC Specialist
Heavy Duty PVC

Twin Screw & Barrel (Conical / Parallel)

Designed for high calcium filler PVC pipes, PVC profiles, WPC boards, and CPVC high-temp applications.

  • Types: 45/94, 51/105, 55/110, 65/132, 80/156
  • Oil Cooling Circulation Core
  • Optional Tungsten Carbide Coated Flights
Ultra Wear-Proof
Centrifugal Cast

Bimetallic Screws & Barrels

Specifically developed for abrasive glass-fiber reinforced plastic, halogen-free flame retardants, and corrosive compounds.

  • Ni-Cr-B-Si Alloy Centrifugal Casting
  • Alloy Layer Thickness: 2.0mm - 3.5mm
  • Service Life: 3x to 5x standard nitriding
Injection Machines

Injection Moulding Screws

Compatible with all major injection brands (Engel, L&T, Haitian, Toshiba, Windsor, Ferromatik Milacron).

  • Optimized plasticizing mixing heads
  • High pressure non-return valve tips
  • Diameter range: Ø 16mm to Ø 180mm
High Output Film

Barrier Screws with Maddock Mixer

Guarantees rapid melt homogeneity, low melt temperature, and 20-30% higher extrusion speed on LDPE/LLDPE/HDPE.

  • Dual-channel barrier flight geometry
  • Pineapple / Maddock shear section
  • Mirror-polished root surface
Precision Spares

Ring Plungers, Tips & Nozzles

H13 tool steel & CPM carbide non-return valve assemblies to prevent backflow and shot weight fluctuation.

  • 3-Piece Non-Return Valves
  • Ball-check and custom shut-off tips
  • Extended nozzles & heater band adapters
How We Ensure 100% Quality

Our 5-Step Precision Manufacturing Process

From certified alloy raw stock to computerized gas nitriding and internal mirror honing.

1

Raw Material Assay

Ultrasonic crack detection & chemical composition verification of EN41B/alloy ingots.

2

Deep Gun Boring

High accuracy deep boring up to 6000mm ensuring concentricity and straightness.

3

CNC Thread Milling

Computer-controlled screw flight milling guaranteeing strict tolerance to 0.01mm.

4

Gas Nitriding

72-hour controlled furnace cycle achieving uniform 68-72 HRC wear layer.

5

Superfinishing

Diamond honing of barrel bore & mirror-polish buffing on screw surfaces (Ra < 0.2 µm).

Sectors We Empower

Engineered for Heavy Plastic Sectors

Delivering specialized screws and barrels compatible with rigid polymers, soft resins, and aggressive masterbatches.

PVC / HDPE Pipe Plants

Conical & parallel barrels engineered for pressure and high filler rates.

Blown Film Extrusion

Special barrier screws for monolayer and multilayer packaging films.

Plastic Recycling / Granulation

Degassing vented barrels for scrap HDPE, PP, and PET pelletizing lines.

Automotive Moulding

Bimetallic barrels for glass-reinforced automotive structural parts.

Get In Touch

Let's Discuss Your Screw Barrel Requirements

Need a direct quote or technical advice on choosing the optimal L/D ratio and compression flight depth? Reach out to our application engineers.

Factory & Registered Office

Plot No. 42-44, Phase 2, GIDC Industrial Estate, Vatva, Ahmedabad, Gujarat 382445, India

Direct Phone Numbers

+91 98765 43210 / +91 (079) 2589 1234

Email Address

sales@patelengineeringworks.com

info@patelengineeringworks.com

Working Hours

Monday - Saturday: 9:00 AM to 7:00 PM (IST)

Quick RFQ / Technical Inquiry