Glass Industry – Precision Engineering Components Expertise

JAS Engineering is a specialist supplier of precision engineering components for the glass manufacturing industry — supplying components across the complete glass production process from the batch charger and furnace section through to the hot end, annealing/tempering, cutting, coating, and packing lines. We supply solar glass plants, float glass manufacturers, and container glass plants with precision-machined and fabricated components engineered specifically for the temperatures, loads, and operating conditions of each production zone.

Our components are currently trusted by leading glass manufacturers and we understand the process-specific demands of each section of a glass line — from heat-resistant gears to precision trim cutting rollers and flexible bellows for high-temperature furnace connections.

Glass Manufacturing Process & Components We Supply

1. Batch Charger

The batch charger feeds the raw glass batch — a precisely proportioned mixture of silica sand, soda ash, limestone, and cullet — into the glass furnace at a controlled rate. Components in the batch charger must withstand abrasive raw materials, vibration, and the heat radiating from the furnace entrance.

We manufacture precision turned components on multi-axis CNC lathes with live tooling for shafts, spindles, flanges, bushes, sleeves, couplings, threaded parts, and complex rotational profiles. Diameter range: ⌀15mm to ⌀500mm, length up to 600mm. Materials: mild steel, alloy steel, stainless steel, aluminium, brass, and engineering plastics. Tolerances achieved: ±0.01mm diameter, Ra 0.8 µm surface finish standard.

Components We Supply:

→ Roller Chains: Heavy-duty roller chains for batch charger conveyor and reciprocating pusher drives, manufactured from alloy steel with heat treatment for extended wear life in abrasive batch material conditions.

→ Drive Sprockets: Alloy steel sprockets with case-hardened teeth to match batch charger drive chains — available in standard and custom tooth counts to suit your machine’s drive arrangement.

→ Conveyor Pulleys: Drive and tail pulleys for belt-type batch charger systems, with wear-resistant lagging for abrasive silica sand and batch material.

→ Custom Machined Components: Shafts, couplings, and drive housings for batch charger machinery maintenance and equipment upgrades, manufactured to drawing or sample.

2. Furnace

Components We Supply:

→ Bellows (Flexible Expansion Joints): Stainless steel corrugated bellows and flexible hose assemblies for furnace combustion air ducting, cooling water circuits, and utility connections where thermal expansion, vibration, and misalignment must be accommodated without rigid piping stress. Available in SS304 and SS316 with flanged, slip-on, or weld-end connections.

→ Flexible Hose Pipe Assemblies: SS316 braided flexible hose assemblies for furnace cooling water circuits, burner gas connections, and utility pipework — pressure-rated and temperature-rated for furnace zone operating conditions.

→ Custom Fabricated Components: Heat-resistant alloy steel fabrications, support frames, and structural assemblies for furnace ancillary equipment, manufactured to drawing.

3. Hot End

The hot end covers the section immediately after the furnace where molten glass is formed into its final shape — flat glass on a tin bath (float process), or individual containers in IS machines (container glass). The hot end operates at temperatures from 600°C to 1100°C and involves complex conveyor, drive, and forming equipment working under extreme thermal stress.

Components We Supply:

→ Snap Rollers: Precision-manufactured snap rollers for hot end conveyor systems that transport newly formed glass sheets away from the tin bath exit at controlled speed. Snap rollers must be dimensionally accurate with consistent surface finish to avoid surface marking on the soft, hot glass surface. Manufactured from heat-resistant alloy steel with precision-ground roller surfaces.

→ Cooling Jackets: Custom-fabricated water-cooled cooling jackets for hot end conveyor rollers and drive shafts operating in the high-temperature zone immediately after the tin bath. Manufactured in SS316 with internal water channels for effective heat dissipation, protecting bearings and drive components from heat damage.

→ TL Shafts (Taper Lock Shafts): Precision-machined taper lock shafts for hot end conveyor roller assemblies, providing accurate, concentric mounting and easy roller removal for maintenance without disturbing adjacent components — critical in hot end conveyor systems where access is restricted by heat enclosures.

→ Roller Chains & Sprockets: Heat-resistant alloy steel roller chains and matching sprockets for hot end conveyor drive systems operating in elevated temperature zones. Selected material grades and lubrication specifications suit the temperature range of each hot end conveyor section.

4. Annealing / Tempering Gears

The annealing is a long, tunnel-like oven through which glass is transported on a conveyor at a precisely controlled, gradually decreasing temperature — relieving internal thermal stresses in the glass to prevent spontaneous breakage. Tempering gears additionally heat glass above its strain point and then rapidly cool it to create surface compression for toughened glass. The conveyor system runs continuously and must operate with minimal vibration and consistent speed to avoid glass breakage or surface marking.

Components We Supply:

→ Gears → Helical and Spur Gears:
Precision helical and spur gears for conveyor drive gearboxes — the most critical rotating components in the drive system. Gears must operate smoothly and quietly (helical gears preferred for this reason) under continuous duty at elevated temperatures, maintaining accurate speed ratio across the full length. We manufacture gears from alloy steel (EN19, EN24) with heat treatment and gear grinding to DIN quality standards. Replacement gears are manufactured to original drawings or reverse-engineered from worn samples.

→ Accumulator Rollers: Precision conveyor rollers for accumulator sections where glass sheets are temporarily stored or buffered between the exit and downstream cutting/inspection sections. Accumulator rollers must have consistent diameter, low runout, and appropriate surface material to transport glass sheets smoothly without surface contact marks. Manufactured from steel with rubber or silicone covering as required.

→ PU Rings: Polyurethane rings and roller coverings for conveyor rollers in zones where direct metal-to-glass contact must be avoided to protect the glass surface. PU rings are manufactured in the correct Shore A hardness, inner diameter, and outer diameter to fit your existing roller shafts — providing a cushioned, non-marking contact surface that extends both roller and glass surface life.

→ Rubber Top Roller Chains: Rubber-topped roller chains for conveyor drive systems where the chain surface directly contacts the glass underside and a non-marking, cushioned contact surface is required. The rubber inserts on each roller link provide grip and cushioning while preventing surface damage to the annealed glass.

→ TL Shafts (Taper Lock Shafts): Precision taper lock shafts for conveyor roller assemblies throughout the annealing zone, providing easy roller mounting and removal for maintenance without full conveyor disassembly.

5. Cutting

Components We Supply:

→ Trim Cutting Rollers: Precision rubber or PU-covered rollers for glass trim cutting conveyor systems that transport glass sheets through the cutting section. Trim cutting rollers must have consistent diameter and surface finish across their full face width to maintain flat, stable glass support during the cutting operation — any roller runout or surface irregularity causes glass vibration and inaccurate cuts. We manufacture trim cutting rollers with precision-ground rubber or PU coverings to the exact diameter, length, and bore specification of your cutting line conveyor.

→ Conveyor Chains & Sprockets: Roller chains and sprockets for cutting table conveyor drives, cross-cutter drives, and glass breakout conveyor systems in the cutting section.

→ Timing Pulleys & Synchronous Drives: Precision timing pulleys for cutting machine drive systems where exact synchronisation between the cutting wheel carriage and the glass conveyor speed is critical for achieving accurate cut lines and minimising scored glass breakage.

→ Custom Shafts & Machined Components: Precision shafts, guide rolls, and custom machined components for cutting table maintenance and equipment upgrades.

6. Coating

Components We Supply:

Solar and architectural glass is typically coated with functional thin films, anti-reflective coatings, low-E coatings, or TCO (Transparent Conductive Oxide) coatings — applied either online (during production) or offline (on a separate coater line). The coating section involves precision conveyor systems that transport glass at controlled speed through vacuum deposition chambers or chemical coating spray systems, with tight requirements for roller surface quality and conveyor accuracy to avoid coating defects.

→ PU Rings & Rubber Roller Coverings: Non-marking PU and rubber roller rings for coating line conveyor rollers — critical in coating sections where any particle contamination or surface marking from conveyor rollers will cause coating defects visible in the final product. PU rings are manufactured in antistatic grades where required to prevent electrostatic dust attraction in sensitive coating environments.

→ Snap Rollers: Precision conveyor rollers for coating line transport systems, manufactured to tight diameter and runout tolerances to ensure stable, vibration-free glass transport through the coating chamber.

→ Drive Chains & Sprockets: Precision roller chains and sprockets for coating line conveyor drives — selected for low-vibration, smooth operation to prevent coating thickness variation caused by conveyor speed fluctuations.

→ Custom SS316 Components: Stainless steel machined components for coating line equipment in environments where corrosion from coating process chemicals must be avoided.

7. Packing

The packing section at the end of the glass production line handles finished glass sheets — sorting, stacking, framing, and packing them for storage or despatch. Conveyor systems must transport glass sheets safely and without surface marking while operating at production line speeds. Components in the packing section are generally less thermally demanding but require reliable, continuous operation and gentle, non-marking contact with finished glass surfaces.

Components We Supply:

→ Rubber & PU Conveyor Rollers: Non-marking rubber and PU-covered conveyor rollers for glass packing line transport systems, suction cup conveyor systems, and vertical glass storage and retrieval systems. Surface material, hardness, and finish are selected to prevent surface marking or scratching of finished glass products.

→ Trolley & Material Handling Wheels: Heavy-duty PU trolley wheels and glass transport trolley components for moving stacked glass packs within the warehouse and despatch area — providing smooth rolling, high load capacity, and floor protection.

→ Conveyor Chains & Attachment Chains: Conveyor chains for packing line transport, tilting tables, and glass orientation equipment in the packing and despatch section.

→ Conveyor Pulleys: Drive and idle pulleys for packing line belt conveyor systems — rubber-lagged for reliable belt grip and smooth, consistent glass transport speed.

Glass Companies We Supply

JAS Engineering supplies precision engineering components to glass manufacturers across India including solar glass plants, float glass manufacturers, and specialty glass producers. Our components are trusted on production lines at companies including Borosil, DCM Shriram, and Sika — and we are an established component supplier to glass plants in the Jagadia industrial cluster in Gujarat.

We understand the specific component requirements of each glass manufacturer’s line configuration and machine make — and can manufacture replacement components to original drawings, worn samples, or reverse-engineered measurements for all major glass line equipment makes.

Why Choose JAS Engineering for Glass Industry Components?

Process-Specific Expertise — We supply components across every section of the glass production line — from batch charger to packing — and understand the specific material, temperature, and precision requirements of each process zone.

Reverse Engineering Capability — When original drawings are unavailable for worn or obsolete components, our team measures and reverse-engineers samples to produce accurate replacement parts. This is particularly valuable for older glass line equipment where OEM spares are no longer available or are prohibitively expensive.

Fast Turnaround on Breakdown Parts — Glass production lines run continuously and unplanned stoppages are extremely costly. We maintain capacity for urgent breakdown orders and prioritise critical component supply to minimise production downtime for our glass industry customers.

Custom Manufacturing — Every component listed on this page can be manufactured to your specific machine’s drawing or sample — non-standard dimensions, special materials, and custom configurations are all accommodated.

Single-Source Supply — Gears, trim cutting rollers, snap rollers, PU rings, rubber top chains, cooling jackets, bellows, and TL shafts — all from one supplier who understands your glass production process.

Contact Us

Ready to discuss your precision engineering components for the glass industry? Send your drawings, samples, or component list to the JAS Engineering team and we will respond with a detailed technical review, process recommendation, and competitive quotation — typically within 48 hours of receiving your enquiry.