I. Thông tin cơ bản về sản phẩm

Q1: What is the ASFROM AC-510 Cracking Machine?

A1: The ASFROM AC-510 Cracking Machine is a two-roll crushing machine dedicated to EVA waste recycling. It squeezes and shears foam scraps via differential-speed rollers to re-process EVA, PVC, PE foam scraps and EVA injection sprues. Two configurations are available: AC-510 V1 (standard version) and AC-510 V2 (premium upgraded version).

Q2: What are the shared core technical parameters for ASFROM AC-510 V1 and V2?

A2: V1 and V2 share identical roller dimension, power, overall size and weight. Key parameters include front smooth roller diameter, rear grooved roller diameter, roller working length, front-roller linear speed, roller speed ratio, manual nip adjustment range, batch feeding capacity, main-motor rotating speed, reducer specification, bearing model, overall dimension, machine weight and bearing working temperature.
1.Front smooth roller: 450 mm; Rear grooved roller: 510 mm; Roller working length: 1000 mm
2.Front-roller speed: 19.12 m/min; Speed ratio: 1:1.61; Manual nip range: 0.1-10 mm
3.Batch feeding capacity: 25-35 kg; Main motor:75 kW-6P; Motor speed:980 r/min
4.Reducer model:375 plus; Reduction ratio 355-45; Input gear width 70 mm, output gear width 140 mm
5.Roller bearing model:352960YA; Bearing dimension:420×300×174 mm
6.Overall dimension:4600×2700×2500 mm; Machine weight:11500 kg
7.Bearing working temperature:60-90 ℃

Q3: What are the configuration differences between AC-510 V1 and AC-510 V2?

A3:Roller, reducer, overall dimension and weight remain the same. V1 is standard configuration. V2 upgrades over V1 with Wuxi Teco main motor, Delta 75 kW inverter, Inovance braking unit, nylon rubber stopper-plate assembly, circulating lubrication system, CC-type spherical roller bearings jointly produced by SKF (Sweden) and Wafangdian.

II. Các ngành công nghiệp và vật liệu áp dụng

Q4: What raw materials can be processed by ASFROM AC-510 Cracking Machine?

A4:It is suitable for EVA, PVC, PE foam scraps, EVA injection sprues and rubber plastic foam waste, providing pre-treatment for subsequent grinding and kneading processes.

Q5: What production scenarios is ASFROM AC-510 Cracking Machine mainly applied to?

A5:Mainly applied to EVA shoe-material waste-recycling lines and rubber-plastic foam scrap regeneration lines. It is commonly matched with EVA grinding machine, kneader mixer and open mixing mill to build complete waste-recycling production lines.

三. Utility, Installation & Commissioning

Q6: What utility conditions are required for AC-510 Cracking Machine?

A6:Electricity: 400 V 50 Hz, power supply specification 280-6-75 kW. Cooling water: pressure 2 kg/cm², flow rate 0.6 m³/min. Compulsory cooling system is optional according to process requirement. Machine frame must be properly earthed.

Q7: What foundation and leveling accuracy are required for AC-510 installation?

A7:Concrete foundation is required with recommended depth of 0.3-0.65 m. Leveling tolerance: vertical 0.1/1000, horizontal 0.15/1000. A 0.06 mm feeler gauge shall not pass through bearing-seat mating surfaces.

Q8: What is the complete test-running procedure for AC-510 Cracking Machine?

A8: It includes pre-inspection, no-load test-running and three-stage load test-running.
4.Pre-inspect wiring, earthing and fill lubricant to all lubrication points.
5.No-load running for minimum 4 hours to inspect braking performance and bearing temperature rise.
6.Three-stage load test: 25-50% rated power ≥16 h →50-75% rated power ≥16 h →100% rated power ≥8 h. Formal production can start only after passing load test.

Q9: What operating precautions for roller-gap adjustment of AC-510?

A9: Nip gap is adjusted manually by handwheel. Never set roller gap to zero to avoid damage to roller surface and bearings. Initial gap for friction heating shall not be less than 0.2 mm. Keep left-right gap uniform during adjustment. Widen roller gap before heating to prevent jamming caused by thermal expansion.

IV. Cấu tạo và các bộ phận của máy

Q10: What are the 5 core assemblies of ASFROM AC-510 Cracking Machine?

A10: 5 modular core assemblies:
1.Mechanical body; 2. Transmission device; 3. Nip-adjusting device; 4. Piping system; 5. Electrical control system
Mechanical body includes base, one-piece cast U-shaped frame, front-rear rollers, bearings & bearing housings, anti-leakage sealing assembly. Transmission device includes main motor, shaft-coupling group, hard-tooth-surface reducer and speed-ratio gear set.

Q11: What are material and performance advantages of AC-510 rollers?

A11: Rollers are made of vanadium-titanium alloy chilled cast iron with surface hardness above 70 degrees and approximately 15 mm wear-resistant layer. Internal cooling-water channels ensure uniform roller-surface temperature; peripheral drilling can enhance cooling under high-temperature working conditions.

Q12: What structural features do frame and base of AC-510 have?

A12：The U-shaped frame is one-piece cast steel with heat-treatment instead of welded assembly for high rigidity and anti-deformation. The base is welded with national-standard I-steel and steel plate after aging treatment for stable operation.

Q13: What are features of bearing and sealing structure for AC-510?

A13: V1 adopts spherical roller bearing model 352960YA. V2 upgrades to CC-type spherical roller bearing jointly manufactured by SKF & Wafangdian. Anti-leakage sealing assembly is built-in bearing housing with high-temp, wear-resistant and oil-resistant sealing rings. V2 is equipped with complete circulating lubrication system to eliminate oil leakage.

Q14: What are configuration features of AC-510 transmission system?

A14:Equipped with full-ysealed hard-tooth-surface single-output precision reducer. Elastic pin coupling connects main motor and reducer. Speed-ratio gear set drives front-rear rollers at fixed differential ratio with low noise and high transmission efficiency.

Q15: What brand components are adopted for AC-510 electrical system?

A15: V1: Shilin AC contactor, Taiwan Tend push-buttons; Y reduced-voltage starting.
V2: Shilin contactor, Tend push-buttons; Wuxi Teco main motor, Delta 75 kW inverter, Inovance braking unit for variable-speed control.

五.Safety, Maintenance & Troubleshooting

Q16: What safety-protection functions does AC-510 have?

A16:Mechanical safety-disc overload protector safeguards machine. Roller reverses 1/3-turn after emergency-stop trigger to release jammed material. Electrical system has short-circuit & overload protection. V2 additionally installs Inovance braking unit for faster braking response. Brake-sensitivity test shall be performed weekly.

Q17: What are lubrication points and maintenance cycles for AC-510?

A17: ①Roller bearing: grease per shift; CD40 diesel-engine oil, replace every half-year.

②Hard-tooth-surface reducer: HL-20 gear-oil for winter / HL-30 for summer, replace every half-year.

③Speed-ratio gear: HL-20 / HL-30 gear-oil, replace every year.

④Nip-adjustment-screw spherical surface: calcium-base grease, add small quantity each shift. For V2 circulating-lubrication system, replace filter element and oil according to filter condition.

Q18: What is overall maintenance schedule for AC-510?

A18: Per shift: refill grease, check emergency-stop function and oil level. Weekly: brake-function test. Half-year: replace reducer & bearing circulating oil. Yearly: replace gear-box lubricant. V2 additionally inspect circulating-lubrication filter condition. Complete overhaul every two years, inspect and replace worn-out spare parts.

Q19: What are common electrical faults and troubleshooting guidelines for AC-510?

A19: 1) Main motor fails to start: check thermal-overload relay, E-stop circuit, start-stop buttons, time relay and contactor latching circuit. For V2, also check inverter alarm codes.
2) No motor reverse action: inspect reverse button, reverse-loop contactors and time-relay output.
3) Brake failure: verify E-stop normally-open contacts and brake time-relay self-locking. For V2, check indicator light status of Inovance braking unit.

六.Model Selection & Production-line Matching

Q20: How to choose between AC-510 V1 and V2?

A20: V1 standard version is suitable for basic EVA-waste crushing projects with limited budget. V2 premium version is recommended for high-load recycling lines requiring variable-speed control, zero-leakage lubrication and extended bearing service-life.

Q21: What downstream machines can match AC-510 to build complete recycling lines?

A21: It can be matched with EVA foam-scrap grinding machine, kneader mixer and open mixing mill to build complete EVA-foam-scrap recycling & regeneration lines.

Q22: What are the 8 key product advantages of AC-510 Cracking Machine?

A22: ①Vanadium-titanium alloy chilled-cast-iron rollers with high-hardness roller surface and 15 mm wear-resistant layer.

②Hard-tooth-surface reducer with compact structure, low noise and high efficiency.

③Anti-leakage sealing assembly built-in bearing housing.

④Well-known-brand main electrical components.

⑤V2 upgraded circulating-lubrication system eliminates oil-leakage trouble.

⑥Mechanical & electrical dual-overload-protection; emergency-stop reverse for jam-material release.

⑦One-piece cast U-shaped frame with high rigidity and anti-deformation performance.

⑧National-standard I-steel welded base for stable machine running.