I. Grundlegende Produktinformationen

Q1: What is AFC‑740 Hydraulic 4‑Column Cutting Machine?

A1: AFC‑740 Hydraulic 4‑Column Cutting Machine is a 40‑ton medium‑heavy‑duty four‑column hydraulic cutting machine. It adopts double‑cylinder plus double‑crank‑connecting‑rod automatic balance mechanism and high‑strength four‑column frame. Auto slow‑cut is triggered when platen touches die. Equipped with central automatic lubrication system. Optional PLC micro‑computer integrated control. Adjustable cutting force 0‑40T, performance between 25‑ton flat‑bed cutter and 80‑ton AFC‑780. Suitable for die‑cutting flexible synthetic materials such as luggage, shoe‑materials, leather and golf‑bag accessories. Up‑stream connects skiving and laminating machines. Cut semi‑finished parts go to downstream edge‑folding process. Extension: Full‑series cutting‑machine comparison ‑ AFC‑622:22T swing‑arm type for small dies & small‑size parts, small footprint.

‑ AFC‑525:25T flat‑bed, dedicated for shoe midsole & outsole.

‑ AFC‑525A:25T flat‑bed universal for shoe‑material & leather‑goods.

‑ AFC‑740:40T four‑column medium‑heavy‑duty for medium‑thickness multi‑layer stacks.

‑ AFC‑780:80T four‑column heavy‑duty for thick‑material & high‑layer heavy‑load cutting.

Q2: What are the core technical parameters of AFC‑740 Hydraulic 4‑Column Cutting Machine?

A2:

1.Model No.: AFC‑740
2.Max cutting force: 40T
3.Cutting stroke: 50‑180mm
4.Motor power:3HP / 2.2KW
5.Hydraulic oil filling quantity:80kg
6.Worktable dimension:610×1600mm
7.Machine dimension:2300×1050×1370mm
8.Packing size:2300×1100×1500mm
9.N.W:1900kg；G.W:2000kg
Extension: Avoid continuous full‑40‑ton operation which accelerates cylinder seal aging. Stroke rule: platen lifting height shall be slightly larger than total thickness of die plus stacked materials.

Q3:What are the main features of AFC‑740 Hydraulic 4‑Column Cutting Machine?

A3:

1.Double‑cylinder plus precise double‑crank‑connecting‑rod automatic balance mechanism ensures even force distribution, stable powerful cutting force, reduces shaking‑deformation and improves finished‑product yield.
2.Auto slow‑cut when platen touches die. Almost zero dimensional deviation between top‑bottom layers for multi‑layer cutting, also extends service life of die and cutting board.
3.High‑strength four‑column frame sustains long‑term medium‑heavy‑duty continuous production and minimizes cutting offset error. Central automatic lubrication system automatically supplies lubricant to moving pairs without manual oiling, preserves machine precision and extends component service life.
4.Wide‑range adjustable hydraulic output 0‑40T, adapts to flexible synthetic materials of various thickness and texture.
5.Optional PLC integrated control. Process parameters such as pressure and stroke can be adjusted according to production requirements to reduce operator labor intensity.
Extension: Optimized for medium‑layer stacked‑material production. Die sharpness directly affects cutting quality. Blunt die increases machine load and may cause incomplete cutting.

II. Anwendbare Branchen und Werkstoffe

Q4:What products and materials can AFC‑740 Hydraulic 4‑Column Cutting Machine process?

A4:Applied in shoe factories, handbag‑luggage factories and sports‑goods processors for die‑cutting of shoe‑materials, leather‑goods and golf accessories. Up‑stream connects BMF‑228 skiving machine and various laminators. Cut semi‑finished goods go to A‑292 / AFB‑202 edge‑folding machine for downstream processing.
Extension: Suitable for medium‑large‑batch production with medium stack thickness and supports sampling. Not for ultra‑thick & high‑layer heavy‑load condition; choose AFC‑780 (80T) for such scenario.

Q5: What production scenarios is AFC‑740 Hydraulic 4‑Column Cutting Machine mainly used for?

A5:Applied in shoe factories, handbag‑luggage factories and sports‑goods processors for die‑cutting of shoe‑materials, leather‑goods and golf accessories. Up‑stream connects BMF‑228 skiving machine and various laminators. Cut semi‑finished goods go to A‑292 / AFB‑202 edge‑folding machine for downstream processing.
Extension: Suitable for medium‑large‑batch production with medium stack thickness and supports sampling. Not for ultra‑thick & high‑layer heavy‑load condition; choose AFC‑780 (80T) for such scenario.

三. Utility, Installation & Commissioning

Q6: What utility conditions are required for AFC‑740 Hydraulic 4‑Column Cutting Machine?

A6:Power supply: three‑phase power, reliable protective earthing is mandatory. No compressed‑air source required. Floor load‑bearing ≥2000kg. Keep workshop ventilated; keep hydraulic oil away from open fire. Reserve space for die handling, operation and maintenance.
Extension: Verify doorway & aisle dimension before machine arrival. Hydraulic oil is flammable; basic fire‑fighting equipment shall be equipped in workshop.

Q7: What are requirements for installation & placement of AFC‑740 Hydraulic 4‑Column Cutting Machine?

A7:Place machine on flat hard load‑bearing floor and level whole unit. Reserve surrounding clearance for die lifting‑disassembly and maintenance. Keep away from high‑temperature heat source and open fire. No obstacles above worktable.
Extension: Do not place tight against wall for convenient maintenance of four‑column guide and oil‑circuit.

Q8:What is complete test‑running operating procedure for AFC‑740 Hydraulic 4‑Column Cutting Machine?

A8:

1.Confirm reliable power earthing; clean oil tank and fill 80kg hydraulic oil; verify motor oil‑pump rotation matches housing arrow mark; level whole machine.
2.Clean worktable and place forming die. Complete die‑setting and adjust cutting stroke. For PLC‑equipped version, set pressure & stroke parameters via touch‑screen.
Extension: Never place hands between platen and die during die‑setting.
3.Load stacked material for trial‑cut. Inspect top‑bottom‑layer samples for full penetration and zero dimensional deviation.
4.Fine‑tune pressure and stroke. Start mass‑production after sample acceptance. Central automatic lubrication system supplies oil automatically without manual oiling.
5.Monitor machine vibration and abnormal noise during production. Cut off main power for maintenance. Wait for full hydraulic‑system cooling. Place support block between platen and worktable before repair work.

Q9: What precautions for pressure and stroke adjustment?

A9:Set stroke just to fully cut‑through material. Do not over‑press to avoid damage to die and cutting‑board. Avoid long‑time 40‑ton full‑pressure operation. Re‑perform die‑setting and parameter debugging after die change or stack‑thickness change. Old parameters cannot be reused directly.
Extension: Use minimum pressure which meets cutting requirement to reduce cylinder seal wear.

IV. Maschinenaufbau und Komponenten

Q10: What are the 5 core assemblies of AFC‑740 Hydraulic 4‑Column Cutting Machine?

A10:5 modular core assemblies:
1.Four‑column frame & worktable assembly; 2.Double‑cylinder & double‑crank‑connecting‑rod hydraulic actuator unit; 3.Hydraulic pump & oil‑circuit assembly; 4.Central automatic lubrication assembly; 5.Electrical control system (PLC optional).
‑Four‑column frame & worktable assembly: heavy‑duty four‑column frame, worktable, upper platen.
‑Double‑cylinder & double‑crank‑connecting‑rod hydraulic actuator unit: double‑cylinder assembly, double‑crank‑connecting‑rod balance mechanism.
‑Hydraulic pump & oil‑circuit assembly: oil pump, oil tank, solenoid‑valve group, pressure‑regulating valve, oil pipes, oil‑seal sealing parts.
‑Central automatic lubrication assembly: lubrication pump, oil‑supply pipeline, moving‑part lubrication points.
‑Electrical control system: operation buttons, optional PLC touch‑screen module.
Extension: Wearing‑parts list: cylinder oil‑seal & O‑ring, high‑pressure oil pipe, solenoid‑valve coil, relay. Spare‑part stock is recommended to reduce downtime.

Q11: What is the function of double‑crank‑connecting‑rod automatic balance mechanism?

A11:Cooperate with double cylinders to balance force on upper platen and eliminate platen tilt & offset. Guarantees dimension consistency in multi‑layer cutting, reduces frame shaking and protects four‑column guides and cylinder components.

Q12:What is the function of central automatic lubrication system?

A12:Automatically deliver lubricant to moving pairs such as four‑column guides and crank‑connecting‑rods. Eliminate risk of component wear /seizure caused by forgotten manual lubrication, sustain long‑term cutting precision and extend component service life.

五.Safety, Maintenance & Troubleshooting

Q13:What safety notes for AFC‑740 Hydraulic 4‑Column Cutting Machine?

A13:

1.Machine must be reliably earthed for three‑phase power supply against electric‑shock hazard.
2.Keep hands away from gap between platen and worktable during platen downward stroke to avoid crush injury.
3.For maintenance & die replacement: cut off main power; wait for full hydraulic‑cylinder cooling; place solid support block between platen and worktable.
4.Do not remove protective covers. Only trained qualified personnel are allowed to operate.
5.Stop machine for troubleshooting once oil leakage occurs. Do not run machine with fault.
Extension: Keep all body parts away from area directly under platen during die‑setting. Operators shall not wear loose sleeves.

Q14: What is maintenance schedule for AFC‑740 Hydraulic 4‑Column Cutting Machine?

A14:Per shift: Check oil supply status of central automatic lubrication system; clean debris on worktable; inspect hydraulic oil leakage.
Weekly: Inspect oil‑pipe joints and cylinder oil‑seal for leakage; check die cutting edge; tighten external fasteners.
Every half‑year: Fasten all electrical terminals; inspect solenoid‑valve and relay; check wear condition of four‑column guides and crank‑connecting‑rods.
Yearly: Replace hydraulic oil and clean oil‑tank & filter; complete machine overhaul. Evaluate wear of oil‑cylinder, oil‑pump and sealing‑parts; replace aged spare‑parts.
Extension: Lower platen to low‑position and apply dust‑proof protection for long‑term shutdown.

Q15: Common faults and troubleshooting guidelines?

A15:

1. Large dimensional deviation between top‑bottom layers in multi‑layer cutting: Check fastening status of double‑crank‑connecting‑rod mechanism; verify auto slow‑cut function is active; redo die‑setting and stroke fine‑tuning.
2. Fast die wear: Excessive platen pressing stroke; confirm auto slow‑cut function works normally.
3. Insufficient cutting pressure & incomplete penetration: Excessive stacked layers; insufficient pressure / stroke setting; clogged oil filter; deteriorated hydraulic oil.
4. Hydraulic oil leakage: Aged cylinder oil‑seal; loose oil‑pipe joints.
5. Abnormal auto‑lubrication oil supply: Inspect lubrication pump and blocked oil pipeline. Extension‑added frequent site faults:
6. Excessive cutting vibration: Check loose fasteners on four‑column guides and crank‑connecting‑rods; confirm die is placed at center of worktable.
7. No action for PLC‑equipped version: Confirm emergency‑stop reset; inspect solenoid‑valve power‑supply signal.

六.Model Selection

Q16: Which customers are suitable for AFC‑740 Hydraulic 4‑Column Cutting Machine?

A16:Recommended for shoe‑making factories, luggage factories and sports‑goods processors. 40‑ton four‑column medium‑heavy‑duty cutter for multi‑layer die‑cutting of shoe‑materials, leather and golf accessories with medium stack thickness. Up‑stream matches skiving and laminating machines. Cut parts feed to A‑292 / AFB‑202 edge‑folding machine.
Extension:
✅ Suitable scenarios: Require 40‑ton medium cutting‑force; medium‑thickness & medium‑layer stacked material; demand four‑column frame rigidity; optional PLC intelligent control.
❌ Unsuitable scenarios: Small‑size small dies (choose AFC‑622 swing‑arm); mass‑production of thick‑material with high‑layer heavy‑load requiring 80‑ton pressure (choose AFC‑780).
Alternative suggestion:
1.Choose AFC‑622 swing‑arm cutter for small‑part sampling.
2.Choose AFC‑525A for 25‑ton universal flat‑bed cutting.
3.Choose AFC‑780 (80T) for thick‑material & high‑layer heavy‑load cutting.