Send Inquiry

Request To Call Back

JACK A4C Sewing machies

Price 32000.0 INR/ Number

Get a Price/Quote

MOQ : 1 Number

JACK A4C Sewing machies Specification

Operate Method
Electric, Manual

Voltage
220v Volt (v)

Condition
New

Dimension (L*W*H)
120*80*86 Millimeter (mm)

Needle
1

Feed Mechanism
NTB (New Technology Breakthrough) System

Sewing Speed
5000 SPM

Warranty
1 year

Stitch Length
5mm Millimeter (mm)

Product Type
JACK A4C Sewing machies

Color
White & Blue

Stitch width
0

Stitch Formation
Single Needle Lockstitch

Sewing Thickness
5mm

Power
550w Watt (w)

JACK A4C Sewing machies Trade Information

Minimum Order Quantity
1 Number

Delivery Time
3 Days

About JACK A4C Sewing machies

The Jack A4C (specifically the A4C-C model) is an advanced, computerized single-needle lockstitch industrial sewing machine designed for high-speed precision using AI technology. It is primarily known for its NTB System, which uses an "Octopus Nine-Brain" AI chip to analyze fabric types in real-time and adjust feeding for consistent stitch quality

Key Performance Features

Octopus Nine-Brain AI Chip: This engine performs 10,000 calculations per second and holds a memory of 200,000 fabric samples to optimize feeding force and stitch formation instantly.
0-Degree Thread Path Technology: An exclusive linear threading system that reduces thread tension by approximately 30%, minimizing friction and preventing thread breakage.
Integrated Direct Drive Motor: An energy-efficient 550W motor that provides silent operation, reduced vibration, and high-speed performance.
Full Automation (UBT): Includes automatic thread trimming (with a short 3.5mm remain), automatic foot lifting (up to 13mm), and automatic reverse feed for seam reinforcement.

Technical Specifications

Specification	Details
Max Sewing Speed	5,000 stitches per minute (SPM)
Max Stitch Length	5 mm (digitally adjustable via stepper motor)
Needle System	DBx1 (Sizes #1118)
Presser Foot Lift	5 mm by hand; up to 13 mm by knee/automatic
Fabric Range	Light to heavy-weight (cotton, denim, knits, polyester)
Lubrication	Fully automatic with a recirculating high-pressure pump
Weight	~36 kg (Net) / 42 kg (Gross)

User Experience Features

Smart Control Panel: Allows for digital stitch length adjustment (precise to 0.1 mm), speed control, and needle positioning.
Interactive Voice Guide: Provides step-by-step guidance for operation and troubleshooting, which is helpful for training new users.
Workplace Comfort: Equipped with built-in adjustable LED lighting and a USB port for charging mobile devices

The Jack A4C is primarily designed to handle light to medium-weight materials, though its advanced AI features allow it to adapt effectively to heavier fabrics like denim.

Thickness & Capacity Capabilities

Presser Foot Lift Height: The machine offers a maximum clearance of 13 mm (approximately 1/2 inch) when using the automatic or knee lifter. This high lift allows you to easily place thick fabric stacks or multiple layers of material under the needle.
Adaptability: Its Octopus Nine-Brain AI Chip adjusts the feeding force in real-time to maintain stitch quality when moving between thin and thick sections, a feature often called "hump-jumping".
Needle Compatibility: To sew thicker materials successfully, you should use larger needle sizes within the supported range of #14 to #18 (DBx1 system).
Fabric Range: While it excels at standard garments like shirts and blouses, it can handle heavier items such as jeans, workwear, and certain types of tooling leather

The Jack A4C utilizes a bottom feed mechanism controlled by a high-precision stepper motor and a specialized AI chip. This configuration replaces traditional mechanical dials and levers with digital controls, allowing for greater precision and smoother operation across various fabric types

Core Components of the Feed System

Bottom Feed (Drop Feed): The machine uses standard feed dogs located beneath the needle plate to move the fabric forward.
Stepper Motor Drive: Unlike standard machines that use mechanical linkages to set stitch length, the A4C uses a stepper motor. This allows for:
- Silent Reverse/Bartacking: Eliminates the loud "clacking" noise usually associated with reverse stitching.
- Ultra-Precise Stitching: Stitch length can be adjusted on the digital panel in increments as small as 0.1 mm.
Octopus Nine-Brain AI Chip: This is the "brain" of the feeding system. It calculates the optimal feeding force 10,000 times per second based on a database of 200,000 fabric samples to ensure consistent movement regardless of fabric thickness.

Feeding Advantages

Hump-Jumping: The AI-driven feed force allows the machine to maintain uniform stitches when transitioning from thin fabric to thick seams (like the "hump" on denim) without skipping stitches.
Condensed Stitching: The digital control enables initial and final "condensation stitches" to prevent the seam from unraveling without requiring a bulky bartack.
Precision Overlapping: The stepper motor ensures that the backstitch (reverse) lands exactly in the same holes as the forward stitch for a cleaner look

The Jack A4C produces a Single Needle Lockstitch, the strongest and most common industrial stitch, formed by interlocking an upper needle thread with a lower bobbin thread. Its advanced AI and digital controls significantly enhance how these stitches are formed compared to traditional machines.

Stitch Formation Process

Mechanical Cycle: The needle carries the upper thread through the fabric, forming a loop. A rotary hook catches this loop and pulls it around the bobbin thread, "locking" them together at the center of the fabric.
0-Degree Thread Path: This unique technology aligns the thread path linearly, reducing tension by 30%. This ensures smoother thread delivery and more consistent stitch appearance, especially at high speeds of up to 5,000 SPM.
AI-Optimized Timing: The Octopus Nine-Brain AI Chip synchronizes the thread take-up, thread catching, and fabric feeding 10,000 times per second. This prevents irregular stitches or thread breakage when moving across different fabric densities

Programmable Stitching Options

The Jack A4C's digital system allows you to create specific stitch formations beyond standard straight lines:

Ornamental Patterns: The machine can produce up to 9 different decorative stitch patterns by varying the stitch length.
Precise Stitch Length: Because it uses a stepper motor rather than a mechanical dial, you can adjust stitch length in precise 0.1 mm increments.
Secure Seam Ends:
- Condensed Stitching: Small, tight stitches at the start and end prevent unraveling without the bulk of a full backtack.
- Programmable Bartacks: You can set a specific number of forward and backward stitches (e.g., 3 forward, 3 back) for automated seam reinforcement.
Box Mode: Allows for automated 4-sided box stitching, often used for attaching labels or velcro, by programming the number of stitches per side

The Jack A4C is a single-needle lockstitch machine, which means it is designed for straight-line sewing and does not have a "stitch width" in the same way a zigzag or overlock machine does.

Stitch Length

Maximum Length: The standard maximum stitch length is 5 mm.
Digital Adjustment: Unlike machines with a manual dial, the
A4C
uses a stepper motor that allows you to adjust the stitch length in precise 0.1 mm increments through the digital control panel.
Customization: Some advanced settings (accessible via the parameter menu) may allow for increasing the pitch to roughly 6 mm to 7.5 mm, though this is typically for specific technical applications and requires checking needle plate clearance.

Stitch Width

Fixed Width: As a lockstitch machine, the needle only moves up and down in a single position, so the "width" of a standard stitch is essentially zero.
Decorative Patterns: The A4C can create patterned stitches (up to 9 or 20 types depending on the specific sub-model). It achieves these "designs" by varying the length and direction of forward and reverse stitches, rather than moving the needle side-to-side.
Needle Gauge: For twin-needle variants or specific attachments, the needle gauge is typically 6.4 mm (standard 1/4 inch), but for the standard single-needle A4C, there is no needle-to-needle width

The Jack A4C (A4C-C) is an industrial-grade machine with specific dimensions for both the machine head (for shipping/shipping volume) and the full workstation setup.

Machine Head Dimensions & Weight

When measured for packaging or individual mounting, the machine head has the following specifications:

Volume/Size: Approximately 695 mm x 295 mm x 550 mm.
Operating Space: Provides a 10-inch (approx. 260 mm) work area from the needle to the machine arm, giving you ample room for maneuvering large fabric pieces.
Net Weight: 36 kg (machine head only).
Gross Weight: 42 kg (includes shipping box and standard accessories

Table & Stand Dimensions

Industrial machines like the A4C are typically installed on a specialized power stand. Retailers like Konsew and IIGM provide the following standard table dimensions:

Tabletop Length: 120 cm (approx. 47 inches).
Tabletop Width: 54 cm to 60 cm (approx. 2124 inches).
Height: Adjustable from 70 cm to 86 cm, allowing you to set a

Machine Head Carton Dimensions

The boxed machine head, which contains the central AI chip and direct-drive motor, has the following specifications:

Dimensions (Volume): 695 mm x 295 mm x 550 mm.
Gross Weight: 42 kg, which includes the 36 kg machine head plus standard accessories and protective packaging.
Pack Type: Standard industrial carton pack designed to withstand long-distance shipping.