{"product_id":"jack®-c4-4-m03-333-sd-4-thread-automatic-overlock-industrial-sewing-machine-complete-with-table-stand","title":"JACK® C4-4-M03\/333 SD 4-Thread Automatic Overlock Industrial Sewing Machine – Complete with Table \u0026 Stand","description":"\u003c!-- JMJ HTML Product Description --\u003e\n\u003ch2 style=\"margin-bottom: 10px;\"\u003eJACK® C4-4-M03\/333 SD - 4-Thread Automatic Overlock Industrial Sewing Machine\u003c\/h2\u003e\n\u003cstyle\u003e\n@keyframes pulseJMJ {\n  0% {transform:scale(1); box-shadow:0 0 0 rgba(249,115,22,0);}\n  50% {transform:scale(1.02); box-shadow:0 0 12px rgba(249,115,22,.35);}\n  100% {transform:scale(1); box-shadow:0 0 0 rgba(249,115,22,0);}\n}\n\u003c\/style\u003e\n\u003cdiv style=\"margin: 16px 0; padding: 14px 18px; border: 2px solid #f97316; border-radius: 10px; background: #fff7ed; text-align: center; animation: pulseJMJ 2s infinite;\"\u003e\n\u003cp style=\"margin: 0; font-weight: 800; font-size: 17px; color: #f97316;\"\u003eCOMPLETE ASSEMBLED WITH TABLE AND STAND INCLUDED\u003c\/p\u003e\n\u003cp style=\"margin: 6px 0 0; font-size: 14px; color: #333;\"\u003eComplete industrial setup — professionally assembled and ready for production.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-bottom: 12px; font-weight: 500;\"\u003e4 Threads • Automatic Overlock • 3 Sewing Modes • Photocell Sensors • Automatic Foot Lifter • Automatic Chain Cutter • Voice Guide • Up to 7,000 SPM\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe \u003cstrong\u003eJACK® C4-4-M03\/333 SD\u003c\/strong\u003e is a high-speed, computerized \u003cstrong\u003e4-thread automatic industrial overlock sewing machine\u003c\/strong\u003e designed for professional garment production. It combines intelligent automation, photocell-controlled sewing, automatic presser foot lifting, automatic chain cutting, voice guidance, effective oil control, and adjustable overedge width in one efficient production system.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe C4 provides \u003cstrong\u003ethree easily selectable sewing modes — Automatic, Semi-Automatic, and Manual\u003c\/strong\u003e — allowing the operator to adapt the machine to different production requirements and levels of automation.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eWith a maximum sewing speed of up to \u003cstrong\u003e7,000 stitches per minute\u003c\/strong\u003e, the JACK® C4 is engineered to provide fast, consistent overlock sewing while reducing repetitive operator movements and improving production efficiency.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eThree Sewing Modes\u003c\/h3\u003e\n\u003cdiv style=\"margin: 10px 0 16px; padding: 14px 16px; border-left: 5px solid #f97316; background: #fff7ed; border-radius: 6px;\"\u003e\n\u003cp style=\"margin: 0 0 10px; font-weight: 800; color: #f97316;\"\u003eMANUAL • SEMI-AUTOMATIC • AUTOMATIC\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0;\"\u003e\u003cstrong\u003eAutomatic Mode:\u003c\/strong\u003e The machine operates through its sensor system without requiring continuous pedal operation. The photocells detect the material and coordinate the automatic sewing functions.\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0;\"\u003e\u003cstrong\u003eSemi-Automatic Mode:\u003c\/strong\u003e The operator controls the sewing operation while automatic functions such as presser foot lifting and thread trimming assist with the production cycle.\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0 0;\"\u003e\u003cstrong\u003eManual Mode:\u003c\/strong\u003e Functions can be controlled manually through the machine panel, allowing the operator to select and use the desired assistance functions as needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003ePhotocell-Controlled Automatic Sewing\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe integrated \u003cstrong\u003ephotocell sensors\u003c\/strong\u003e detect the material during sewing and enable automatic control of key operations. The system can manage the beginning and end of the sewing cycle and coordinate the electronic presser foot lifter and chain cutter.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThis automation reduces repetitive manual operations and helps improve operator efficiency in continuous garment production.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eAutomatic Presser Foot Lifter \u0026amp; Chain Cutter\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eAt the end of the seam, the photocell system can automatically activate the \u003cstrong\u003eelectronic presser foot lifter and chain cutter\u003c\/strong\u003e. This allows the operator to move quickly from one sewing operation to the next while reducing manual foot lifting and thread-chain cutting.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eEffective Oil Control\u003c\/h3\u003e\n\u003cdiv style=\"margin: 10px 0 16px; padding: 14px 16px; border-left: 5px solid #f97316; background: #fff7ed; border-radius: 6px;\"\u003e\n\u003cp style=\"margin: 0; font-weight: 800; color: #f97316;\"\u003eCLEANER SEWING OPERATION\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0 0;\"\u003eThe JACK® C4 features a \u003cstrong\u003esealed oil pickup system and enclosed needle bar\u003c\/strong\u003e designed to help prevent oil leakage around the sewing area.\u003c\/p\u003e\n\u003cp style=\"margin: 8px 0 0;\"\u003eThis oil-control design helps protect fabrics from unwanted oil contamination while supporting clean professional garment production.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eAdjustable Overedge Width — 6 to 10 mm\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe overedge width can be adjusted from approximately \u003cstrong\u003e6 mm to 10 mm\u003c\/strong\u003e, providing flexibility for different fabric types, sewing applications, and desired seam finishes.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThis adjustment allows the operator to configure the machine according to the required seam coverage and material characteristics.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eVoice Guide\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe integrated \u003cstrong\u003eVoice Guide\u003c\/strong\u003e assists the operator in learning and using the machine's functions. When the machine detects certain operating errors, it can provide an alert to the operator.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eBy pressing the \u003cstrong\u003eVOICE\u003c\/strong\u003e button, the system can provide supported troubleshooting guidance. A dedicated function also allows the operator to return machine parameters to their initial settings.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eSingle Motor Shaft\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe \u003cstrong\u003esingle motor shaft design\u003c\/strong\u003e is engineered to reduce torque-related instability during operation, helping provide smoother machine response and more consistent sewing performance at production speeds.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eHigh-Speed Production — Up to 7,000 SPM\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eThe JACK® C4 reaches a maximum sewing speed of up to \u003cstrong\u003e7,000 stitches per minute\u003c\/strong\u003e, providing the speed required for professional high-volume garment production.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 16px;\"\u003eCombined with photocell automation, automatic foot lifting, automatic chain cutting, and rapid machine response, the high-speed system helps reduce production cycle time and increase operator efficiency.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 16px; padding-left: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Thread Overlock Configuration:\u003c\/strong\u003e Designed for professional garment seaming and edge-finishing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 Sewing Modes:\u003c\/strong\u003e Automatic, Semi-Automatic, and Manual operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Sensor Operation:\u003c\/strong\u003e Photocells detect the material and coordinate supported automatic sewing functions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Start \u0026amp; End of Seam:\u003c\/strong\u003e Sensor-controlled operation helps automate the sewing cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Presser Foot Lifter:\u003c\/strong\u003e Electronic foot lifting reduces repetitive operator movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Chain Cutter:\u003c\/strong\u003e Automatically cuts the thread chain at the appropriate stage of the sewing cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotocell Technology:\u003c\/strong\u003e Coordinates automatic sewing, chain cutting, and presser foot lifting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffective Oil Control:\u003c\/strong\u003e Sealed oil pickup system and enclosed needle bar help reduce oil leakage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFabric Protection:\u003c\/strong\u003e Oil-control construction helps reduce the risk of oil contamination on sewn products.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Overedge Width:\u003c\/strong\u003e Adjustable from approximately 6 to 10 mm for different seam requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Guide:\u003c\/strong\u003e Provides operating assistance and supported troubleshooting information.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Motor Shaft:\u003c\/strong\u003e Designed for improved stability and smoother sewing performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Operation:\u003c\/strong\u003e Maximum sewing speed up to 7,000 stitches per minute.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Automation:\u003c\/strong\u003e Reduces repetitive manual operations for improved production workflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eIdeal For\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 16px; padding-left: 18px;\"\u003e\n\u003cli\u003eT-shirt production.\u003c\/li\u003e\n\u003cli\u003eKnitwear manufacturing.\u003c\/li\u003e\n\u003cli\u003eSportswear.\u003c\/li\u003e\n\u003cli\u003eActivewear.\u003c\/li\u003e\n\u003cli\u003eCasualwear.\u003c\/li\u003e\n\u003cli\u003eUnderwear.\u003c\/li\u003e\n\u003cli\u003eChildren's garments.\u003c\/li\u003e\n\u003cli\u003eGeneral apparel manufacturing.\u003c\/li\u003e\n\u003cli\u003eGarment side seams.\u003c\/li\u003e\n\u003cli\u003eEdge finishing.\u003c\/li\u003e\n\u003cli\u003eProfessional sewing workshops.\u003c\/li\u003e\n\u003cli\u003eHigh-volume garment production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eJACK®\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eC4-4-M03\/333 SD\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eMachine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eAutomatic Industrial Overlock Sewing Machine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eThread Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003e4 Threads\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eSubclass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eM03\/333 SD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaximum Sewing Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eUp to 7,000 Stitches Per Minute\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eSewing Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eManual \/ Semi-Automatic \/ Automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003ePhotocell Sensors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAutomatic Start \/ End\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eYes — Photocell Controlled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAutomatic Presser Foot Lifter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eYes — Electronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAutomatic Chain Cutter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eOveredge Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAdjustable 6–10 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eOil Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eSealed Oil Pickup System \/ Enclosed Needle Bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eVoice Guide\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eMotor Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eSingle Motor Shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eTable \u0026amp; Stand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 6px; border-bottom: 1px solid #ddd;\"\u003eComplete Industrial Setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3 style=\"margin-bottom: 8px;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 16px; padding-left: 18px;\"\u003e\n\u003cli\u003eJACK® C4-4-M03\/333 SD Machine Head.\u003c\/li\u003e\n\u003cli\u003eIntegrated Electronic Control System.\u003c\/li\u003e\n\u003cli\u003ePhotocell Sensor System.\u003c\/li\u003e\n\u003cli\u003eElectronic Automatic Presser Foot Lifter.\u003c\/li\u003e\n\u003cli\u003eAutomatic Chain Cutting System.\u003c\/li\u003e\n\u003cli\u003eIndustrial Sewing Table.\u003c\/li\u003e\n\u003cli\u003eHeavy-Duty Industrial Stand.\u003c\/li\u003e\n\u003cli\u003eStandard Machine Accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003eThe \u003cstrong\u003eJACK® C4-4-M03\/333 SD\u003c\/strong\u003e combines high-speed 4-thread overlock sewing, three selectable operating modes, photocell-controlled automation, automatic presser foot lifting, automatic chain cutting, effective oil control, adjustable 6–10 mm overedge width, and voice guidance in one professional industrial sewing system. It is designed for garment manufacturers seeking faster production, cleaner operation, and reduced operator workload.\u003c\/p\u003e","brand":"JACK®","offers":[{"title":"Default Title","offer_id":53887816892710,"sku":null,"price":1990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/5825\/1302\/files\/ChatGPTImage17sept2026_11_41_18a.m..png?v=1789659733","url":"https:\/\/jmjsewingmachines.com\/products\/jack%c2%ae-c4-4-m03-333-sd-4-thread-automatic-overlock-industrial-sewing-machine-complete-with-table-stand","provider":"JMJ SEWING MACHINES","version":"1.0","type":"link"}