{"id":939,"date":"2026-04-09T09:39:30","date_gmt":"2026-04-09T09:39:30","guid":{"rendered":"https:\/\/laddersprockets.top\/product\/stainless-steel-ladder-sprockets\/"},"modified":"2026-04-09T09:39:31","modified_gmt":"2026-04-09T09:39:31","slug":"stainless-steel-ladder-sprockets","status":"publish","type":"product","link":"https:\/\/laddersprockets.top\/fr\/product\/stainless-steel-ladder-sprockets\/","title":{"rendered":"Pignons d'\u00e9chelle en acier inoxydable"},"content":{"rendered":"
\n

Stainless Steel Ladder Sprockets \u2014 Corrosion-Resistant Transmission for Hygienic & Chemical Conveyor Systems<\/h2>\n

Ever-power Australia Driven Sprocket Co., Ltd. manufactures stainless steel ladder sprockets specifically for conveyor environments where corrosion, chemical exposure and hygiene compliance drive component selection. Available in SS304 and SS316\/316L austenitic grades, these sprockets maintain surface passivation through daily CIP wash-down cycles, caustic and acid exposure, and continuous high-humidity operation \u2014 conditions that destroy standard carbon steel within weeks.<\/p>\n

We supply food processing plants, pharmaceutical manufacturers, seafood facilities, dairy operations, chemical dosing lines, marine platform conveyors and water-treatment installations across Australia. Every sprocket is machined from mill-certified bar stock under our ISO 9001 : 2015 quality management system, with full material traceability from raw billet to finished part.<\/p>\n

\"Stainless<\/p>\n

1. Technical Specifications<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nSS304 Grade<\/th>\nSS316\/316L Grade<\/th>\n<\/tr>\n<\/thead>\n
Material Standard<\/td>\nASTM A276 \/ EN 10088-3<\/td>\nASTM A276 \/ EN 10088-3<\/td>\n<\/tr>\n
Chromium Content<\/td>\n18%<\/td>\n16-18% + 2% Mo<\/td>\n<\/tr>\n
Hardness (Annealed)<\/td>\nHRC 20-25<\/td>\nHRC 20-25<\/td>\n<\/tr>\n
Max Continuous Temp<\/td>\n120°C<\/td>\n200°C<\/td>\n<\/tr>\n
Tooth Count Range<\/td>\n8 – 95 teeth<\/td>\n8 – 95 teeth<\/td>\n<\/tr>\n
Pitch Range<\/td>\n6.35 mm – 50.8 mm<\/td>\n6.35 mm – 50.8 mm<\/td>\n<\/tr>\n
Bore Range<\/td>\n10 mm – 120 mm<\/td>\n10 mm – 120 mm<\/td>\n<\/tr>\n
Surface Finish<\/td>\nElectropolish Ra < 0.8 um<\/td>\nElectropolish Ra < 0.6 um<\/td>\n<\/tr>\n
Hub Style<\/td>\nType A \/ B \/ C \/ Split<\/td>\nType A \/ B \/ C \/ Split<\/td>\n<\/tr>\n
Compliance<\/td>\nFDA 21 CFR<\/td>\nFDA, REACH, EU 1935\/2004<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

2. Product Features<\/h3>\n
\n
\n

◆ Superior Corrosion Resistance<\/h4>\n

Austenitic stainless steel maintains a self-healing chromium oxide passivation layer that resists pitting, crevice corrosion and stress-corrosion cracking in chloride, acid and alkaline media. SS316L adds molybdenum for enhanced resistance in marine and chemical environments.<\/p>\n<\/div>\n

\n

◆ Hygienic Electropolished Surface<\/h4>\n

Tooth flanks electropolished to Ra less than 0.8 um (SS304) or Ra less than 0.6 um (SS316L) eliminate micro-crevices where bacteria colonise. Smooth surfaces shed product residue during CIP cycles without manual scrubbing.<\/p>\n<\/div>\n

\n

◆ FDA & REACH Compliant<\/h4>\n

All stainless steel ladder sprockets meet FDA 21 CFR 174-178 food-contact requirements. SS316L additionally complies with REACH and EU 1935\/2004 for pharmaceutical and food-grade conveying.<\/p>\n<\/div>\n

\n

◆ Thermal Stability<\/h4>\n

SS304 operates continuously to 120°C; SS316L to 200°C without loss of mechanical properties or dimensional distortion \u2014 critical for oven discharge, retort and sterilisation conveyors.<\/p>\n<\/div>\n

\n

◆ Extended Chain Life<\/h4>\n

Smooth, corrosion-free tooth surfaces reduce abrasive friction on chain plates and rollers. Field data from Australian food processors shows 2-3x chain replacement interval extension versus mild steel sprockets.<\/p>\n<\/div>\n

\n

◆ CNC Precision Machining<\/h4>\n

5-axis CNC machining delivers pitch accuracy within 0.02 mm cumulative over the full sprocket circumference. Bores machined to H7 tolerance for reliable shaft fit.<\/p>\n<\/div>\n<\/div>\n

3. Compatibility Information<\/h3>\n

Chain Standards:<\/strong> Compatible with ANSI 25 through ANSI 240, ISO 606 \/ DIN 8187 simplex, duplex and triplex roller chains, as well as extended-pin and hollow-pin ladder chain configurations.<\/p>\n

Shaft Diameter Range:<\/strong> 10 mm to 120 mm. Keyways machined to AS 2062 \/ DIN 6885. Taper-lock and QD bush adaptors available on request.<\/p>\n

Coupling Compatibility:<\/strong> Direct-mount compatible with standard jaw couplings, chain couplings and grid couplings used in food-grade conveyor drive assemblies.<\/p>\n

4. Selection Guide<\/h3>\n

By Chain Pitch:<\/strong> For standard food-grade belt conveyors running 12.7 mm (ANSI 40) or 15.875 mm (ANSI 50) pitch chains, SS304 is the cost-effective default. For chemical wash lines or marine environments, specify SS316L.<\/p>\n

By Application:<\/strong> Bakery oven discharge, IQF spiral freezers, dairy pasteurisation lines and beverage bottling \u2014 use SS304. Seafood brine tanks, pharmaceutical CIP lines, chlorinated water treatment and offshore platform conveyors \u2014 use SS316L.<\/p>\n

By Load:<\/strong> Light to medium conveyor loads up to 500 kg\/m. For heavy-load applications, consider our carbon steel heavy-duty series.<\/p>\n

5. Material & Manufacturing Process<\/h3>\n

Raw material: mill-certified ASTM A276 austenitic stainless bar stock. Blanks are saw-cut, then CNC turned and milled on 5-axis machining centres. Tooth profiles are finish-cut to AGMA\/ISO accuracy. Post-machining, sprockets undergo passivation in citric acid solution per ASTM A967, followed by electropolishing to achieve the specified Ra surface finish. No heat treatment is applied \u2014 austenitic grades are used in the solution-annealed condition (HRC 20-25) to preserve maximum corrosion resistance.<\/p>\n

6. Application Scenarios<\/h3>\n
\n
\n

🍞<\/span>Bakery & Oven Conveyors<\/strong><\/p>\n

SS304 ladder sprockets drive mesh-belt and modular-belt conveyors through tunnel ovens, proofers and cooling lines. Electropolished surfaces prevent dough adhesion and resist daily alkaline wash-down.<\/p>\n<\/div>\n

\n

❄<\/span>IQF & Blast Freezer Lines<\/strong><\/p>\n

SS316L sprockets withstand -40°C to +85°C thermal cycling in spiral freezers followed by hot caustic CIP. Zero corrosion eliminates product contamination risk.<\/p>\n<\/div>\n

\n

⚛<\/span>Pharmaceutical & Cleanroom<\/strong><\/p>\n

316L grade with Ra < 0.6 um electropolish for blister-pack conveyors, lyophiliser loading systems and aseptic fill-finish transfer lines. Gamma and e-beam sterilisation resistant.<\/p>\n<\/div>\n

\n

🌊<\/span>Marine & Chemical Processing<\/strong><\/p>\n

Molybdenum-enriched SS316L resists chloride pitting on offshore platform conveyors, desalination systems and chemical dosing transfer lines operating at pH 1-13.<\/p>\n<\/div>\n<\/div>\n

7. Customer Testimonials<\/h3>\n
\n

★<\/span>★<\/span>★<\/span>★<\/span>★<\/span> \u2014 Murray-Darling Food Processor, Australia<\/strong><\/p>\n

We replaced mild steel sprockets with Ever-power SS316L on our IQF spiral freezer. Zero corrosion events recorded over 18 months of continuous 3-shift production. HACCP audit passed without issue.<\/p>\n<\/div>\n

\n

★<\/span>★<\/span>★<\/span>★<\/span>★<\/span> \u2014 Seafood Processor, New Zealand<\/strong><\/p>\n

The electropolished finish eliminated bacterial harbourage on our brine-line conveyors. Cleaning time reduced by 40% per shift. Excellent surface quality.<\/p>\n<\/div>\n

\n

★<\/span>★<\/span>★<\/span>★<\/span>★<\/span> \u2014 Pharmaceutical Manufacturer, Germany<\/strong><\/p>\n

SS316L sprockets with full material traceability and FDA declarations. Documentation was complete and accurate \u2014 exactly what our QA team required for EU GMP compliance.<\/p>\n<\/div>\n

\n

★<\/span>★<\/span>★<\/span>★<\/span> \u2014 Dairy Cooperative, USA<\/strong><\/p>\n

Running SS304 on our pasteurisation line conveyors. Good corrosion resistance, accurate bore dimensions, and the price point is competitive against local US suppliers.<\/p>\n<\/div>\n

\n

★<\/span>★<\/span>★<\/span>★<\/span>★<\/span> \u2014 Chemical Plant, Japan<\/strong><\/p>\n

316L grade performing well in our acid-wash conveyor. No pitting after 14 months of pH 2 exposure. We have reordered for a second production line.<\/p>\n<\/div>\n

8. Frequently Asked Questions<\/h3>\n
\nWhat is the difference between SS304 and SS316L for ladder sprockets?<\/summary>\n
SS304 is the general-purpose food-grade option with 18% chromium. SS316L adds 2% molybdenum for superior resistance to chloride pitting, acids and marine atmospheres. 316L is required for pharmaceutical, marine and aggressive chemical applications. For standard bakery, dairy and beverage conveyors, SS304 is sufficient and more cost-effective.<\/div>\n<\/details>\n
\nCan stainless steel ladder sprockets operate without lubrication?<\/summary>\n
Yes. In food-grade and pharmaceutical environments where lubricant contamination is unacceptable, stainless steel sprockets run dry against food-grade chain. The electropolished surface minimises friction. For extended dry-running life, pair with UHMW-PE or POM sprockets on the idler side.<\/div>\n<\/details>\n
\nWhat surface finish do you provide?<\/summary>\n
Standard finish is machined (Ra 1.6 um). Electropolish to Ra < 0.8 um (SS304) or Ra < 0.6 um (SS316L) is available on request and recommended for all food-contact and pharmaceutical applications.<\/div>\n<\/details>\n
\nDo you supply FDA documentation with orders?<\/summary>\n
Yes. We provide FDA 21 CFR material declarations, REACH compliance statements, mill certificates (material traceability), CMM dimensional reports and Certificates of Conformance with every order on request.<\/div>\n<\/details>\n
\nWhat is the lead time for custom stainless steel ladder sprockets?<\/summary>\n
Prototypes and small batches: approximately 10 business days ex-works. Production orders: approximately 20 business days. We also stock common pitch\/tooth combinations for immediate dispatch.<\/div>\n<\/details>\n

9. Recommended Accessories<\/h3>\n
\n
\n

🔗<\/span>Stainless Steel Transmission Chains<\/strong><\/p>\n

SS304 and SS316 roller chains in ANSI\/ISO standard pitches. Matched material eliminates galvanic corrosion between chain and sprocket.<\/p>\n<\/div>\n

\n

⚙<\/span>Stainless Steel Bushings<\/strong><\/p>\n

Taper-lock and QD bushings in 304\/316 stainless for corrosion-free shaft mounting in wash-down environments.<\/p>\n<\/div>\n

\n

⚪<\/span>Food-Grade Bearings<\/strong><\/p>\n

Sealed stainless steel bearing units (IP69K rated) for hygienic conveyor applications. Resist high-pressure wash-down.<\/p>\n<\/div>\n<\/div>\n

10. Installation Guide<\/h3>\n

Step 1 \u2014 Shaft Preparation:<\/strong> Clean shaft journal, verify diameter within tolerance. Remove burrs from keyway edges.<\/p>\n

Step 2 \u2014 Sprocket Mounting:<\/strong> Slide sprocket onto shaft. Align with mating sprocket using a straight edge or laser alignment tool. Ensure axial alignment within 0.5 mm.<\/p>\n

Step 3 \u2014 Secure Hub:<\/strong> Insert key, tighten set screws or taper-lock bush to manufacturer torque specification. Do not over-tighten \u2014 stainless is susceptible to galling on set screws.<\/p>\n

Step 4 \u2014 Chain Tensioning:<\/strong> Install chain, adjust tension to 2-4% sag on the slack side at mid-span. Re-check after 24 hours of operation.<\/p>\n

Step 5 \u2014 Final Check:<\/strong> Rotate drive by hand. Verify chain tracks centrally on sprocket teeth with no lateral offset. Confirm all guards reinstalled before powering on.<\/p>\n

11. Maintenance & Inspection<\/h3>\n

Lubrication:<\/strong> In food-grade applications, sprockets typically operate dry. Where lubrication is permitted, apply food-safe H1 lubricant every 500 operating hours.<\/p>\n

Wear Inspection:<\/strong> Measure tooth thickness at pitch circle monthly. Replace sprocket when tooth width has reduced by 1.5 mm or when chain seating depth exceeds 2.0 mm beyond nominal.<\/p>\n

Surface Condition:<\/strong> Inspect for localised pitting, discolouration or crevice corrosion at hub\/shaft interface quarterly. Any visible pitting warrants immediate replacement.<\/p>\n

Replacement Interval:<\/strong> Typical service life in food-processing wash-down: 10,000-15,000 hours for SS304; 15,000-20,000+ hours for SS316L depending on chemical exposure severity.<\/p>\n

12. Certifications & Standards<\/h3>\n

We manufacture all stainless steel ladder sprockets in compliance with ISO 606 (roller chain sprocket dimensions), ANSI B29.1 (precision roller chains), DIN 8187\/8188 (European chain standards) and AS 2050 (Australian chain and sprocket standard). Our facility holds ISO 9001 : 2015 certification, independently audited by SGS and TUV. Material is verified by in-house spectral analysis against ASTM A276 \/ EN 10088-3 specifications.<\/p>\n

ISO 9001:2015<\/span>FDA 21 CFR<\/span>REACH<\/span>SGS \/ TUV<\/span>AS 2050<\/span><\/div>\n

13. Why Choose Ever-power<\/h3>\n

We are Ever-power Australia Driven Sprocket Co., Ltd. \u2014 a specialist ladder sprocket manufacturer with over 20 years of OEM supply experience. We focus exclusively on ladder sprockets, not general machined parts. This single-product focus means tighter process control, deeper material expertise and faster turnaround. We operate 5-axis CNC machining centres, wire EDM, in-house heat treatment and a fully equipped metrology lab with CMM capability. We have supplied over 15,000 SKUs to 200+ active accounts across Australia, New Zealand and Southeast Asia, maintaining a 98.4% on-time dispatch record.<\/p>\n

14. Get a Quote Today<\/h3>\n

Tell us your chain pitch, tooth count, bore size and operating environment. Our engineers will recommend the optimal stainless steel grade and surface finish \u2014 with a formal quotation \u2014 typically within one business day.<\/p>\n

\nDemander un devis<\/a>
\nView All Products<\/a>\n<\/div>\n