Virtual Factory Tour
Step Inside Our Factory
Experience 50,000+ sq ft of precision rubber manufacturing — from raw compound mixing to final inspection and dispatch.
50,000+
Sq Ft Area
2
Facilities
24/7
Production
Virtual Tour — Harkesh Mumbai Facility
50,000+ sq ft · ISO 9001:2015 Certified
Our Facility
World-Class Manufacturing Infrastructure
Established in 1982, Harkesh Rubber Products has grown from a single-bay workshop in Mumbai to a 50,000+ sq ft multi-facility rubber manufacturing powerhouse. Our plants in Mumbai, Maharashtra and Gujarat are equipped with modern machinery, automated material handling, and a rigorous quality management system trusted by customers across 40+ countries.
ISO-Controlled Environment
Temperature and humidity-controlled production zones maintain compound and dimensional stability throughout the manufacturing cycle.
200+ Precision Machines
Hydraulic presses, internal mixers, extrusion lines, and injection molding units — all calibrated and maintained to manufacturer schedules.
3-Shift 24/7 Operation
Round-the-clock production with qualified operators and quality personnel on every shift to sustain throughput and product consistency.
Automated Material Handling
Compound transport, tray loading, and parts transfer are semi-automated to minimize handling errors and maintain production hygiene.
50,000+
Sq Ft Total Area
200+
Production Machines
500+
Skilled Workers
3
Production Shifts Daily
99.8%
On-Time Delivery
Facility Layout
6 Specialized Manufacturing Zones
Our facilities are organized into dedicated production zones, each designed and equipped for a specific stage of the rubber manufacturing process — ensuring process discipline, contamination control, and operational efficiency.
Raw Material Storage
Temperature-controlled storage facility housing 50+ rubber compounds and specialty chemicals. Strict FIFO inventory management with full material traceability from certified suppliers worldwide.
Mixing & Compounding
15-ton internal mixers and open mills enabling precise compound formulation. Our in-house laboratory develops and validates custom rubber recipes to exact hardness, resilience, and chemical resistance specifications.
Extrusion & Calendering
Continuous rubber profile extrusion lines producing cord, tubing, seals, and custom profiles to close dimensional tolerances. Calendering lines handle sheet stock for gasket blanking and laminated composites.
Compression & Transfer Molding
150+ hydraulic presses ranging from 50 to 500 tonnes. Compression and transfer molding cells handle everything from simple flat gaskets to complex multi-cavity tools with insert components.
Injection Molding
Precision rubber injection molding for complex geometries, tight tolerances, and consistent part weight. Ideal for automotive and medical components requiring flash-free surfaces and repeatable dimensions.
Quality Control Lab
Fully equipped metrology and testing laboratory: dimensional inspection, tensile and elongation testing, Shore A/D hardness, compression set, chemical resistance, and accelerated aging — all traceable to NABL-accredited standards.
Quality Systems
Built on a Foundation of Certified Quality
Every aspect of Harkesh's manufacturing process is governed by our ISO 9001:2015 quality management system, covering both Mumbai and Gujarat facilities. The QMS defines responsibilities, procedures, and performance metrics for every function — from supplier qualification to final product release.
In-process quality control checkpoints are embedded at each production stage. Statistical process control (SPC) charts are maintained for critical dimensions and process parameters, enabling our engineers to detect and correct drift before non-conforming product is produced.
Full material and batch traceability is maintained from raw compound receipt through to finished goods dispatch. Each shipped part carries a traceable lot code that links back to compound batch records, press logs, cure cycle data, and inspection results — supporting our customers' own traceability and audit requirements.
ISO 9001:2015 Certified
Both Mumbai & Gujarat Facilities
Quality Laboratory Equipment
Coordinate Measuring Machine (CMM)
Sub-micron dimensional verification of complex rubber part geometries.
Shore A & Shore D Hardness Testers
ASTM D2240-compliant hardness measurement across all compound types.
Universal Tensile Testing Machine
Tensile strength, elongation at break, and modulus per ASTM D412.
Compression Set Test Apparatus
ASTM D395 Method B measurement for sealing applications.
Chemical Immersion Bath
Volume swell and weight change in oils, fuels, and chemical media.
Accelerated Aging Oven
Heat aging per ASTM D573 for long-term performance prediction.
Profile Projector / Optical Comparator
Non-contact dimensional inspection of O-ring cross-sections and seal profiles.
FTIR Spectrometer
Incoming compound identity verification and failure analysis.
From Material to Dispatch
Our End-to-End Manufacturing Process
Raw Material Inspection
Incoming rubber compounds and chemicals are tested against certificates of conformance and internal specifications before release to production.
Compound Mixing
Approved raw materials are loaded into internal mixers. Batch records capture temperature, time, and energy curves for each compound lot.
Molding & Extrusion
Mixed compound is transferred to compression, transfer, or injection molding presses — or to extrusion lines — depending on part geometry.
Post-Cure & Finishing
Parts undergo oven post-cure to relieve stress and complete crosslinking. Deflashing, trimming, and surface treatment follow as required.
QC & Dispatch
Final inspection against customer drawings and internal AQL plans. Approved parts are bagged, labelled with full traceability codes, and dispatched.
Raw Material Inspection
Incoming rubber compounds and chemicals are tested against certificates of conformance and internal specifications before release to production.
Compound Mixing
Approved raw materials are loaded into internal mixers. Batch records capture temperature, time, and energy curves for each compound lot.
Molding & Extrusion
Mixed compound is transferred to compression, transfer, or injection molding presses — or to extrusion lines — depending on part geometry.
Post-Cure & Finishing
Parts undergo oven post-cure to relieve stress and complete crosslinking. Deflashing, trimming, and surface treatment follow as required.
QC & Dispatch
Final inspection against customer drawings and internal AQL plans. Approved parts are bagged, labelled with full traceability codes, and dispatched.
Responsible Manufacturing
Environment, Safety & Compliance
Harkesh is committed to sustainable and safe manufacturing practices, meeting global regulatory standards while minimizing our environmental footprint.
Environment
- ISO 14001 Environmental Management System (in progress)
- Solvent and VOC emission controls on all mixing lines
- Scrap rubber recycling and regrind utilization program
- LED lighting and energy-efficient press motors
- Rainwater harvesting at Mumbai facility
- Effluent treatment and responsible chemical disposal
Safety
- Mandatory PPE protocols at all production workstations
- Annual safety training and emergency response drills
- Machine guarding and lockout/tagout (LOTO) procedures
- Near-miss reporting and corrective action system
- Zero-incident target with monthly safety reviews
- Ergonomics program to reduce repetitive-strain injury
Compliance
- RoHS compliance for electronic and electrical applications
- REACH SVHC monitoring and substance screening
- FDA-compliant compounds available for food-contact and medical uses
- ROHS 3 (EU 2015/863) and WEEE aligned supply chains
- Conflict minerals (3TG) declaration support
- Customer-specific material declarations and test reports on request
Schedule a Factory Visit
Our team welcomes customers, partners, and auditors to see our operations in person. Visits can be arranged at either our Mumbai or Gujarat facility based on your needs.
Frequently Asked Questions
Factory Tour — Common Questions
What is the total manufacturing area of Harkesh facilities?
Can customers visit the Harkesh factory?
What production capacity does Harkesh have?
Does Harkesh operate 24 hours a day?
What quality systems are implemented in the factory?
Have a different question? Get in touch with our team