High-Precision Edible Oil Cap Mold & Spout Tooling
Engineered for cooking oil, olive oil, and condiment packaging converters. Sailwin high-cavity edible oil cap molds incorporate synchronized angular slider stripping, dual-point balanced hot runners, and Swedish ASSAB S136 stainless steel, guaranteeing 100% drip-free pouring spouts, reliable tear-off pull rings with zero snapping, and an ultra-fast 7.5s injection cycle.
Precision Edible Oil Cap Mold Portfolio
Explore our field-proven tooling series for pull-ring tear-off spouts, anti-drip neck inserts, telescopic oil caps, and flip-top condiment closures for soybean, sunflower, olive, and canola oils.
PULL-RING · 32MM / 36MMFlip-Top Spout Cap with Tear-Off Ring
The industry standard for 500ml–1.8L consumer salad oil and cooking oil bottles. Features star-shaped flow regulation and ergonomic tear-off pull ring.
- Neck Diameters: 32mm Snap-On / 36mm Screw Finish
- Pull Ring Strength: 45N tensile burst with zero snapping
- Molding Cycle: 8.2s – 9.8s on 16 to 32 cavities
- Pouring Lip: Sharp knife-edge lip eliminates drip trails
INSERT SPOUT · 36MM / 42MMDrip-Free Pouring Neck Insert Spout
Dual-piece plug-in oil spout designed for premium olive oil and sesame oil glass/PET bottles. Recirculates excess oil drops back into the bottle reservoir.
- Recirculation Groove: 360° catch moat channels oil back
- Tooling Cavities: 16, 24, 32 Cavity Hot Runner
- Seal Integrity: Triple-flange friction fit inside bottle neck
- Material Resin: Virgin HDPE / PP food-grade copolymer
TELESCOPIC · 42MM / 48MMInverted Plug Telescopic Oil Spout
Heavy-gauge telescopic flexible spout cap for 5L family cooking oil jugs and commercial catering containers. Collapses flat for easy pallet stacking.
- Extension Length: 35mm flexible bellows pull-out spout
- Sealing Method: Induction foil seal flange + inner plug
- Anti-Leakage: Zero seepage tested at 40°C inverted storage
- Cavity Matrix: 8, 12, 16 Cavities with slide stripper
DUST-COVER · 2-PIECE SYSTEMTwo-Piece Oil Cap with Protective Dust Cover
Precision closure system with transparent over-cap dust shield. Protects the pouring spout from kitchen grease and airborne dust contaminants.
- Assembly Structure: Snap-fit dust cover + spout base
- Hinge Durability: Butterfly living hinge tested > 500 flexes
- Molding Efficiency: 24+24 Family mold or modular tooling
- Tamper Evidence: Audible click snap ring confirms integrity
| Cavity Count | Closure Type | Neck Standard | Cap Weight (g) | Cycle Time (s) | Rec. Machine Tonnage | Annual Output (8000h) | Action |
|---|---|---|---|---|---|---|---|
| 16 Cavities | Pull-Ring Flip-Top Spout Cap | 32mm Snap-On | 5.2g – 6.8g | 8.2s – 9.5s | 160T – 200T | 52 Million pcs | |
| 24 Cavities | Drip-Free Neck Insert Pourer | 36mm Screw Finish | 4.2g – 5.5g | 7.5s – 8.8s | 200T – 250T | 88 Million pcs | |
| 32 Cavities | Star Spout Tear-Off Cap (High-Output) | 32mm / 36mm Finishes | 4.8g – 6.2g | 8.0s – 9.2s | 280T – 320T | 118 Million pcs | |
| 12 & 16 Cavities | 5L Telescopic Inverted Oil Spout | 42mm / 48mm Necks | 9.5g – 14.5g | 11.0s – 13.5s | 250T – 300T | 35 Million pcs | |
| 18 Cavities | Oval Flip-Top Condiment Closure | 38mm Bericap Oval | 6.5g – 8.2g | 9.0s – 10.5s | 200T – 250T | 55 Million pcs |
Need Custom Cap Dimensions or Brand Logo Embossing?
We engineer custom dispensing orifices, pour lip angles, and in-mold laser logo inserts tailored to your brand identity.
Engineering Precision: Slider Strippers & Pull Rings
Cooking oil closures demand flawless living hinges, zero-oil-seepage dual flanges, and ergonomic pull rings that never break prematurely. Explore our specialized kinetic tooling structures.
32-CAVITY SLIDER STRIPPERSynchronized Slider Stripper Mechanism
Pouring spouts feature deep interior undercuts and external retention threads. Sailwin incorporates a dual-plate cam slider stripper mechanism that mechanically drives side slide blocks outward before stripper plate forward actuation, preventing thread distortion.
- • Cam Angle Design: 18° ground angle pins with hardened bronze-graphite guide gibs.
- • Cycle Speed: Smooth mechanical opening stroke enables high-speed 8.0s cycles.
- • Wear Protection: Slide wear plates heat-treated to HRC 58–60 with grease-free self-lubrication.
24-CAVITY PLATFORMHeavy-Duty Slide Stripper on Workshop Pallet
Shown assembled and tested in our assembly hall. The reinforced 4Cr13 mold base plates prevent platen deflection under sustained 250-ton clamping force, maintaining micro-gap flash control across all 24 stations.
- • Flash Prevention: Parting line mismatch strictly controlled ≤ 0.015mm.
- • Ejection Balance: Dual hydraulic cylinders actuate the ejector plate uniformly.
- • Rigid Guiding: 4 oversized hardened guide pillars ensure micro-meter alignment.
FLIP-TOP IN-MOLD CLOSINGLiving Hinge & In-Mold Automatic Closing
Butterfly living hinges on edible oil flip-top caps require precise melt orientation to avoid hinge whitening or premature fatigue cracking. Our mold cavities feature optimized gate locations that force resin to flow parallel to the hinge axis.
- • Hinge Flex Life: Tested > 500 flexes at 180° opening without tearing.
- • In-Mold Closing: Pneumatic sweeping arms automatically snap caps closed before ejection.
- • Spout Sealing: Precision interference plug prevents aroma oxidation.
TEAR-OFF NOTCH TOOLINGPrecision Tear-Off Ring Notch Tooling
Consumer frustration occurs when the pull-ring snaps off while opening an oil bottle. Sailwin utilizes high-precision micro-EDM machining to carve micro-V notches along the tear line with residual bridge thickness strictly maintained at 0.18mm ±0.01mm.
- • Pulling Force: Smooth 25N–35N ergonomic tear opening for easy pull.
- • Zero Ring Snapping: Ring root reinforced with radius transition prevents tear-off failure.
- • Clean Detachment: Zero ragged burrs or sharp plastic particles dropping into oil.
S136 MIRROR CAVITIESRa 0.05μm Cavity Mirror Polish & Fitting
Shown on our master toolmaker's bench. Each cavity insert is manufactured from vacuum-quenched ASSAB S136 stainless steel and hand-lapped to an SPI A1 optical mirror finish, delivering pristine gloss on cap skirts and ribs.
- • Beryllium Copper Inserts: High thermal conductivity inserts accelerate gate chilling.
- • Interchangeable Inserts: Individual cavities can be swapped without remachining.
- • Corrosion Resistance: Resistant to acidic condiments, vinegar, and washing agents.
18-CAVITY OVAL SYSTEMOval Condiment Closures & Multi-Zone Manifolds
For premium olive oil, soy sauce, and balsamic vinegar packaging requiring oval or asymmetric geometries. Integrated multi-zone PID hot runner manifolds maintain uniform melt velocity across uneven cap cross-sections.
- • Asymmetric Flow Balancing: Moldflow simulated runner gates eliminate warpage.
- • Direct Point Gating: Clean pin gate inside the cap cavity leaves invisible gate vestige.
- • Full Wiring Harness: Heavy-duty industrial quick-connect wiring for fast press hookup.
Imported Tool Steels & Micro-Machining Centers
Edible oil caps involve intricate sliding actions and living hinges that demand extreme metallurgical toughness. Sailwin uses genuine imported tool steels and Swiss/Japanese high-precision CNC mother machines.
Swedish ASSAB S136 Stainless Steel
Premium ESR stainless steel vacuum heat-treated to HRC 50–52. 100% rust-proof with diamond-paste mirror polish (Ra ≤ 0.05μm), delivering 3,000,000+ continuous molding cycles without abrasive wear.
- Vacuum Quenching: HRC 50 – 52
- Cavity Mirror Finish: Ra 0.05 μm (SPI A1)
- Guaranteed Tool Life: 3,000,000+ Shots
- Rust Resistance: 100% Rust-Proof
Japanese Daido NAK80 Tool Steel
Pre-hardened mirror-grade steel used for side slide cams and stripper blocks. Delivers superior dimensional stability and high thermal conductivity to accelerate cap thread cooling.
- Hardness Delivery: HRC 38 – 42
- Slide Precision: ±0.005mm Fit
- Thermal Conductivity: 41.3 W/m·K
- Wear Surface: DLC / TiN Coated
High-Rigidity Mold Base Plates
High-tensile structural tool steel normalized and stress-relieved to prevent plate deflection under 300T clamping pressure. Preserves micro-gap flash control across all cavities.
- Base Hardness: HRC 32 – 36
- Plate Flatness: ≤ 0.015mm / Meter
- Guide Pillars: 20Cr Hardened (HRC 60)
- Tensile Strength: 1020 MPa High Rigidity
8-Cavity Mirror Cavity Tooling
High-precision flip-top edible oil cap mold featuring diamond mirror polished cavities and synchronized angular slide cams.
Rectangular Tin-Can Cap Mold
Specialized core and cavity tooling for rectangular tinplate cooking oil cans, featuring perimeter seal gaskets and flexible pour spouts.
Return Spring Assisted Stripping
Equipped with heavy-duty Japanese Daido die springs to ensure instantaneous, smooth stripper plate return during high-speed cycling.
Precision Milling Bays & Guardrails
Climate-controlled milling bays with yellow safety barriers and sky-blue epoxy flooring dedicated to high-speed electrode milling.
Multi-Axis CNC Machining Line
Automated line of 5-axis vertical machining centers milling 32-cavity mold plates in a single setup to eliminate re-clamping error.
Mirror Spark Erosion EDM Bays
Japanese mirror EDM die sinkers erode complex pull-ring micro-grooves and living hinge recesses with zero hand benching.
Tooling Assembly Bays & Live Machine FAT Trials
Take a virtual tour of our 15,000m² specialized closure tooling campus in Taizhou, China. Over 30 CNC machining centers, high-tonnage trial presses, and heavy crane assembly floors dedicated to multi-cavity oil cap tooling.
Precision Spotting Presses & Cranes
Equipped with 200T–500T hydraulic mold spotting presses and dual 15-ton overhead traveling cranes. Our master fitters ensure 100% blue lead spotting coverage across parting lines and slider locking wedges.
Platen Mounting & Cooling Hookup
16-cavity oil cap mold clamped on our 200T high-speed servo injection press with quick-connect multi-circuit chilled water manifolds.
Assembly Stand Bench Fitting
Tooling plate mounted on a 360° rotatable assembly stand in our sky-blue floor CNC workshop for meticulous guide pin and slider fitting.
Heavy Tooling Fitting Hall
Features heavy-duty assembly benches, pneumatic hoists, and climate-controlled tool storage bays maintaining strict dust-free cleanliness.
High-Speed CNC Cap Tooling Bay
Dedicated high-speed 3-axis and 5-axis machining center fleet equipped with Renishaw touch probes to verify cavity pitches in real time.
Specialized Dispensing Closures & Tooling Navigation Hub
Explore our multi-category closure systems across food-grade oils, condiments, trigger sprayers, and aerosol packaging, plus direct gateways to matching blow molds and preforms.
Specialized Dispensing Caps & Closures Portfolio
Food-grade cooking oil tear-off spouts, ribbed screw closures, dual-color aerosol caps, and lotion pumps.
Food-Grade Cooking Oil Pull-Ring Spouts
Features integrated tear-off pull rings with micro-notch bridges and inverted seal plugs for 500ml–5L cooking oil bottles.
Multi-Color Ribbed Bottle Closures
Ergonomic vertical ribs provide high capping machine friction grip without slipping, with tamper-evident breakable drop bands.
Dual-Color Spray Nozzle & Aerosol Caps
Precision 2K dual-material injection tooling for aerosol insect sprays, air fresheners, and fine mist edible cooking oil sprayers.
Dispensing Pumps & Trigger Sprayer Molds
Multi-cavity core tooling for lotion pump shrouds, trigger sprayer bodies, threaded collars, and actuator buttons.
Proven Performance for Top-5 Edible Oil Producer
A multinational edible oil conglomerate installed our 32-cavity pull-ring cap molds running on 280T servo-hydraulic presses. Operating 24/7 at an average cycle time of 8.2 seconds, the client achieved over 120 million caps annually with zero pull-ring failure and zero neck leakage claims.
Turnkey Downstream Tooling & Sub-Pages
Explore matching blow molds, preform molds, and parent category collection hubs.
PET Preform Injection Molds
8 to 96 cavity valve-gate preform molds engineered with 32mm–48mm oil neck finishes and balanced hot runners.
Cooking Oil Bottle Blow Molds
Alloy 7075-T6 blow molds with reinforced handle inserts and anti-bulge ribbed bases for 1L to 5L oil containers.
Water & CSD Bottle Cap Molds
High-speed injection molds for PCO 1881 and 29/25 water closures with in-mold folding tamper bands.
Plastic Injection Molds Hub
Explore all 9 closure categories, preform tooling systems, and custom precision plastic injection tooling.
Frequently Asked Questions on Edible Oil Cap Molds
Explore technical insights regarding pull-ring tear strength, leak-proof neck sealing, living hinge fatigue life, and high-cavity cycle time optimization.
Pull-ring failure is the most common customer complaint in cooking oil packaging. Sailwin eliminates ring snapping through a triple-engineering safeguard:
- Micro-EDM Tear Notches: We precision-machine micro-V grooves along the circular tear perimeter, maintaining residual bridge thickness strictly at 0.18mm ±0.01mm.
- Reinforced Ring Root: The junction between the pull ring and the tear-off diaphragm features an ergonomic fillet radius (R0.8mm) to dissipate stress concentration.
- Tensile Pull Testing: Every trial batch undergoes digital pull-gauge testing, ensuring an opening force of 25N–35N without tearing the ring body.
Edible oil has low surface tension and easily creeps along container walls. Our edible oil cap molds incorporate specialized anti-leak features:
- Sharp Drip-Cut Pouring Lip: The spout exit is engineered with a sharp knife-edge lip (0.12mm radius) that instantly shears off the oil stream when pouring stops.
- Recirculation Catch Moat: A 360° annular drainage groove surrounds the base of the spout, guiding stray droplets back into the bottle neck.
- Dual-Flange Interference Seal: Dual concentric sealing ribs press firmly against the bottle neck's inner bore and top land, withstanding 40°C inverted storage without seepage.
Cycle time is optimized through synchronized slider motion and balanced cooling circuits:
- Molding Cycle: Standard 32mm pull-ring spout caps run at 8.0s to 9.2s on a 280T servo-hydraulic injection press.
- Annual Capacity: Operating 24 hours/day for 330 days/year yields over 118 million caps annually from a single 32-cavity mold.
- Conformal Slide Cooling: Slide inserts feature dedicated cooling water passages to prevent thread distortion during high-speed stripping.
Yes. Sailwin provides complete tooling systems for multi-component dispensing closures:
- Family Tooling: We design balanced family molds (e.g., 16+16 cavity) producing matching spout bases and dust caps in identical cycle times.
- In-Mold Automatic Closing: Pneumatic kicker sweeps automatically fold butterfly flip-caps closed before ejection, delivering finished closed caps to packing.
- Turnkey Assembly Machinery: For multi-piece closures (spout + plug + outer cap), we supply high-speed rotary assembly and vision inspection machines.
Edible oil processing environments and humid cooling water require high-grade corrosion-resistant metallurgy:
- 100% ASSAB S136 Stainless Steel: Cores, cavities, and spout inserts are vacuum quenched to HRC 50–52, providing total rust and acid resistance.
- 3,000,000+ Shots Warranty: Backed by written warranty with on-shelf spare slide cams and core pins for fast swap out.
- Diamond Mirror Polish: Cavity surfaces polished to Ra 0.05μm eliminate polymer sticking and maintain high-gloss cap aesthetics.
Need a Cap DFM Review or Spout Sealing Tolerance Check?
Our tooling directors evaluate 3D closure drawings and bottle neck finishes within 24 hours.
Scale Production with High-Precision Edible Oil Cap Molds
Partner with Sailwin — your reliable edible oil cap mold maker. Submit your cap samples, 3D CAD drawings, or bottle neck profiles for a complimentary DFM analysis, slider layout proposal, and itemized quotation within 24 hours.
Inquire Edible Oil Cap Mold
Fill out the form below. Our tooling design team will calculate cavity layouts, tonnage requirements, and quotation.
