Overview — Sprockets for Bakery Machinery
Australia’s bakery industry — from industrial bread plants in Sydney to artisan pastry producers in Melbourne and biscuit factories in Brisbane — depends on continuous-process machinery that runs through extreme temperature cycles. Tunnel ovens reach 250 °C+, proofers hold 40 °C at 85% humidity, and spiral coolers bring products back to ambient — all driven by chain-and-sprocket systems that must perform reliably under constant thermal stress.
Ever-Power Australia Sprockets Co., Ltd. өндірушілері bakery-grade sprockets from stainless steel and high-temperature alloys, engineered to withstand the unique combination of heat, humidity, flour dust, and food-safety requirements. Our sprockets maintain dimensional stability through thousands of thermal cycles — keeping your oven band tracking true and your production on schedule.
Техникалық сипаттамалар
| Параметр | Стандартты | Тапсырыс бойынша |
|---|---|---|
| Шынжыр қадамы | 3/8″ – 1″ (ANSI 35–80) | Up to 1-1/4″ |
| Тістер | 9 – 40 | 60-қа дейін |
| Strand | Симплекс / Дуплекс | Триплекс |
| Хаб | A / B / QD / Конус түрі | SS flanged / Weld-on |
| Бұрғылау | 12 mm – 60 mm | Up to 90 mm |
| Материал | SS 304 / SS 316 / C45 hardened | SS 316L / Inconel (high-temp) |
| Қаттылық | HRC 30–45 | HRC 55 precipitation-hardened |
| Беткі қабат | Electropolished / Zinc | PTFE coat / Nickel plate |
| ПКД | 35 mm – 400 mm | Up to 600 mm |
| Профиль | ANSI B29.1 / ISO 606 | FDA modified tooth |
| Максималды айналым/мин | 1,000 | 1,800 |
| Температура | –20 °C to +250 °C | –40 °C to +350 °C (tunnel oven) |
| Кілт жолы | DIN 6885 | Сплайн / D-тәрізді тесік |
| Ұңғыма төзімділігі | H7 | H6 |
| TIR | ≤ 0,05 мм | ≤ 0.025 mm |
| Lubrication | H1 food-grade / Dry-running | Self-lubricating sintered bush |
| Созылу | ≥ 520 MPa (SS 304) | ≥ 900 MPa (Inconel) |
| Шаршау | ≥ 10 000 сағат | ≥ 20,000 hrs |
| Thermal Cycling | 500+ cycles (ambient–250 °C) | 2,000+ cycles |
| Қаптама | Cleanroom poly + CoC | Vacuum-sealed + full traceability |
Өнімділік артықшылықтары
250 °C Rated
Our tunnel-oven sprockets maintain tooth geometry and bore tolerance through 2,000+ thermal cycles between ambient and 250 °C without warping or growth.
Hygiene Compliant
Electropolished surfaces, crevice-free designs, and FDA-compliant materials pass BRC, SQF, and HACCP audits for direct and indirect food contact.
No Lubrication Needed
Self-lubricating sintered bushings and PTFE-coated teeth eliminate the need for oil in oven zones — removing a contamination risk and a maintenance task.
Inferior alternatives: Standard carbon-steel sprockets warp after repeated oven cycles, causing band tracking issues that produce burnt or under-baked product. Chrome plating flakes at high temperature, creating foreign-body contamination risk. Only purpose-built bakery sprockets deliver safe, reliable performance.
How Sprockets Work in Bakery Machinery
Modern bakery lines use chain-and-sprocket drives in several thermally demanding applications:
▸ Tunnel oven band drive: Large drive sprockets (typically 25–40 teeth, ANSI 60–80) pull the continuous steel or mesh band through the oven at precise, constant speed. Temperature inside the oven chamber reaches 180–260 °C. The drive sprocket sits at the oven exit (hot end), enduring continuous high temperature.
▸ Proofer conveyor: A multi-tier proofer uses sprocket-driven chains to carry dough trays through a warm, humid cabinet (35–42 °C, 80–90% RH). Sprockets must resist moisture-induced corrosion.
▸ Spiral cooler/freezer: Sprockets drive a spiral conveyor belt that carries baked goods through a cooling tower or blast freezer (down to –35 °C). Thermal shock from oven-exit to freezer-entry demands dimensional stability.
▸ Dough divider and moulder: Precision sprockets time the cutting and moulding actions. Speed accuracy directly affects product weight consistency.
▸ Depanner and pan conveyor: Sprockets drive the chains that carry baking pans from oven to depanner to pan return, typically in a high-temperature zone.
Үйлесімділік
| Bakery Station | Тізбек түрлері | Жабдық* |
|---|---|---|
| Tunnel Oven | ANSI 60–80 SS, Mesh-belt drive | Middleby, Bühler, Spooner |
| Proofer | ANSI 40–60 SS | Rademaker, WP Bakery, AMF |
| Spiral Cooler | ANSI 50–80, Side-flex SS | Ashworth, FPM, IJ White |
| Dough Divider | ANSI 35–50 SS | Glimek, Konig, Benier |
*Бренд атаулары тек айқас сілтемелер үшін. Серіктестік жоқ.
📊 Oven Zone Temperature — Material Selection Matrix
| Zone Temp | Recommended Material | Lubrication | Expected Life |
|---|---|---|---|
| Ambient – 100 °C | SS 304 or C45 hardened | H1 food-grade oil | 18–24 months |
| 100 – 200 °C | SS 316 / SS 321 | PTFE dry lube | 14–20 months |
| 200 – 280 °C | SS 310 / Inconel 600 | Dry-running (self-lube bush) | 12–18 months |
| 280 – 350 °C | Inconel 625 / Nimonic | Dry-running only | 10–14 months |
Таңдау бойынша нұсқаулық
- Identify the bakery machine and specific drive location (oven band, proofer, cooler, divider).
- Determine chain pitch, strand, and number of teeth from the OEM parts book.
- Confirm operating temperature range — this determines material grade (see matrix above).
- Specify hygiene requirements: electropolished for direct food contact; passivated for non-contact zones.
- Choose hub type: QD for accessible drives; taper-lock for oven-end drives where vibration is a factor.
Contact our bakery-equipment specialists for material and temperature recommendations.
Орнату
- Shut down oven and allow to cool below 50 °C. Lockout per AS/NZS 4024.
- Release band or chain tension via the oven’s take-up mechanism.
- Remove old sprocket from drive shaft. Use SS-compatible puller to avoid contamination.
- Inspect shaft for heat damage, scoring, or thermal distortion.
- Fit new sprocket; use anti-seize rated for operating temperature on set screws.
- Re-tension band or chain per OEM specification.
- Check band tracking: sprocket crown must be centred; edge-to-edge band deviation ≤ 5 mm.
- If oven zone, do NOT apply oil-based lubricant. Use dry PTFE lube or self-lubricating bush only.
- Bring oven to operating temperature slowly (ramp over 45–60 min); monitor band tracking during heat-up.
- After first production run, re-check tension (thermal expansion will change initial setting).
Ақаулықтарды жою
Oven band tracking to one side
Себебі: Drive sprocket warped from heat or misaligned crown. Түзету: Replace sprocket; verify shaft alignment with laser tool. Check for uneven oven chamber temperature.
Product weight variation from dough divider
Себебі: Worn divider sprocket causing inconsistent cutting speed. Түзету: Replace sprocket; recalibrate divider weight settings.
Burnt product edges on oven band
Себебі: Band speed slowing due to sprocket tooth wear or chain elongation. Түзету: Replace sprocket and chain; verify motor drive speed.
Lubricant smoke in oven zone
Себебі: Incorrect lubricant applied to oven-zone sprocket/chain. Түзету: Switch to dry PTFE lube or self-lubricating chain. Clean off existing oil before restarting.
Sprocket bore seizing on shaft
Себебі: Thermal expansion without anti-seize compound. Түзету: Use high-temp anti-seize (copper or nickel based) rated to operating temperature. Specify H6 bore for press-fit stability.
Кейс-стадилер
📍 Wetherill Park, NSW — Industrial Bread Plant
100 m tunnel oven, 230 °C, 24/7 operation. Standard SS 304 drive sprocket warping every 4 months.
Нәтиже: SS 310 oven-end sprocket with self-lubricating bush. 16 months service — zero warping, zero band tracking issues.
“We eliminated our biggest cause of unplanned oven shutdowns.” — Maintenance Manager
📍 Campbellfield, VIC — Biscuit Factory
Multi-zone oven with 3 independent band drives. Inconsistent band speeds causing colour variation.
Нәтиже: Matched set of precision-ground SS 316 sprockets (TIR ≤ 0.025 mm). Band speed uniformity improved to ±0.1%. Biscuit colour consistency achieved 98.5% pass rate.
“Colour consistency went from our biggest complaint to our biggest strength.” — Өндіріс директоры
📍 Pinkenba, QLD — Pie Manufacturer
Spiral cooler, 300 RPM conveyor, humid environment. Sprocket corroding and chain stretching every 3 months.
Нәтиже: SS 316L sprockets with electropolished finish. 14 months service; cleaning time reduced 30%.
“Less corrosion means less cleaning means more production hours.” — Plant Engineer
📍 Regency Park, SA — Artisan Bakery
Deck oven with stone hearth conveyor. Drive sprocket at 200 °C causing lubrication breakdown.
Нәтиже: PTFE-coated SS sprocket with dry-running chain. Zero lubricant contamination; bread flavour no longer affected.
“Our customers noticed the difference — no more off-flavours from lubricant vapour.” — Head Baker
📍 Canning Vale, WA — Frozen Dough Producer
Blast freezer spiral at –35 °C. Carbon-steel sprockets cracking from cold embrittlement.
Нәтиже: SS 304L sprockets rated to –196 °C. Two years service, zero fractures.
“Cold embrittlement was destroying our sprockets quarterly. Stainless solved it permanently.” — Freezer Maintenance Lead
Жиі қойылатын сұрақтар
What material do you recommend for tunnel-oven sprockets?
SS 310 or Inconel 600 for ovens above 200 °C. SS 316 is suitable for ovens below 200 °C. See our temperature-material matrix above.
Can your sprockets run without lubricant?
Yes. We offer self-lubricating sintered-bush sprockets and PTFE-coated teeth for lube-free oven-zone operation.
Do you supply sprockets for spiral coolers and freezers?
Yes. Our SS 304L and 316L sprockets are rated for cryogenic temperatures down to –196 °C.
Are your bakery sprockets HACCP compliant?
Yes. All food-grade sprockets are manufactured from FDA-compliant materials with full traceability and material certificates.
What is the lead time for high-temp Inconel sprockets?
Typically 3–4 weeks for custom Inconel parts. Stock SS 304/316 bakery sprockets ship within 3–5 days.
Can you match an OEM oven-band drive sprocket?
Yes. Provide the OEM part number, a drawing, or the worn sprocket itself and we’ll produce an exact replacement.
How do I prevent sprocket bore seizing at high temperature?
Use high-temp anti-seize compound on the shaft interface. We also recommend H6 bore tolerance for controlled thermal expansion.
Do you supply to bakery equipment OEMs?
Yes. We supply sprockets to bakery-equipment manufacturers across Australia and internationally under OEM and private-label agreements.
What surface finish is best for direct dough contact?
Mirror electropolished Ra ≤ 0.4 µm prevents dough adhesion and facilitates cleaning. Standard passivated is fine for non-contact drives.
Can I get a volume discount for a full bakery-line fit-out?
Yes. Project pricing is available for full-line sprocket packages. Бізбен хабарласыңы with your line specifications.
Related — High-Temperature Chains
Бізбен жұптаңыз stainless-steel and high-temperature roller chains for complete bakery drive solutions from proofer to freezer.
Сертификаттар
✅ ISO 9001:2015 | ✅ FDA 21 CFR | ✅ HACCP Compatible | ✅ ANSI B29.1 / ISO 606 | ✅ EN 10204 3.1 | ✅ CE
Неліктен Ever-Power Australia Sprockets Co., Ltd?
Бірге 20+ years of sprocket manufacturing, we serve bakeries, food processors, and equipment OEMs across Australia and 50+ countries. Our dedicated food-grade production line handles everything from 12-tooth proofer idlers to 40-tooth oven drive sprockets in stainless and superalloy materials. Australian stock, fast delivery, and full food-safety documentation — because your oven never stops.
Keep Your Oven Running — Contact Us
From proofer to freezer — we’ve got your bakery covered.
Ever-Power Australia Sprockets Co., Ltd. supplies heat-resistant, food-safe sprockets that keep Australian bakeries producing around the clock. Get a quote with material certificates today.
