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Consew 146RB-3A-2 Single Needle Walking Foot Four-Step Zig-Zag Lockstitch Machine
SKU : 146RB-3A-2
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The Martin Family
Consew 146RB-3A-2 Single Needle Walking Foot Four-Step Zig-Zag Lockstitch Machine
Drop Feed, Walking Foot, Four-Step Zig-Zag, Large Bobbin & Reverse Stitching
The Consew 146RB-3A-2 is a single-needle, drop-feed, walking-foot zig-zag lockstitch machine designed for industrial sewing applications requiring reinforced seams. Featuring a four-step/three-stitch zig-zag configuration, horizontal-axis transverse rotary hook, large-capacity bobbin, and reverse feed, this machine is suitable for sewing elastic and stretch materials, canvas, nylon, vinyl, leather, synthetics, and similar materials.
Designed for applications requiring additional stitch reinforcement, the 146RB-3A-2 performs operations similar to the 146RB-2A-2 three-step/two-stitch model while adding another stitch for increased reinforcement. It is suitable for sewing boat covers, truck covers, tents, awnings, sails, parachutes, tarpaulins, and other industrial textile products.
The machine's drop-feed and walking-foot mechanism helps minimize material slippage during sewing, particularly when handling materials that are difficult to feed. Its adjustable zig-zag width of up to 9 mm, locking width regulator, reverse stitching, and maximum sewing speed of 2,500 stitches per minute provide versatility for professional sewing applications.
Important: The 146RB-3A-2 is manufactured with a dedicated 3A cam system that produces a four-step/three-stitch zig-zag pattern. The 1A, 2A, and 3A cam systems are factory-installed, are not interchangeable, and cannot be changed after manufacture.
Applications
- Sewing elastic and stretch materials
- Industrial applications requiring reinforced zig-zag stitching
- Boat covers and marine canvas products
- Truck covers and protective vehicle covers
- Tents and outdoor shelters
- Awnings and shade structures
- Sails and marine textile products
- Parachutes and related textile equipment
- Tarpaulins and industrial canvas products
- Canvas, nylon, vinyl, and synthetic material sewing
- Leather and similar durable materials
- Applications requiring additional seam reinforcement
- Materials that are difficult to feed during sewing
- Industrial textile products requiring multi-step zig-zag seams
Key Features
- Single-needle industrial zig-zag lockstitch machine
- Drop-feed and walking-foot feeding mechanism
- Four-step/three-stitch zig-zag configuration
- Additional stitch for increased seam reinforcement
- Horizontal-axis transverse rotary hook
- Large-capacity bobbin
- Wide zig-zag stitch capability up to 9 mm
- Straight stitching when zig-zag width is set to 0 mm
- Locking zig-zag width regulator
- Adjustable stitch length up to 5 mm
- Upper-feed mechanism helps minimize material slippage
- Reverse feed for reinforcing seams
- Maximum sewing speed of 2,500 stitches per minute
- 10" (255 mm) workspace
- 10 mm presser foot clearance
- Needle system 135 x 17
- Dedicated factory-installed 3A cam system
- Suitable for elastic, stretch, and industrial textile materials
- Robust construction for demanding sewing applications
Stitching Capabilities
- Stitch Type: Zig-Zag Lockstitch
- 3A Stitch Configuration: Four-Step/Three-Stitch Zig-Zag
- Maximum Zig-Zag Width: 9 mm
- Maximum Stitch Length: 5 mm (5 stitches per inch)
- Straight Stitch: Available by setting zig-zag width to 0 mm
- Reverse Feed: Yes
- Maximum Sewing Speed: 2,500 S.P.M.
- Cam System: 3A (Factory-Installed, Non-Interchangeable)
The 3A stitch configuration produces a four-step/three-stitch zig-zag pattern that adds another stitch compared with the 2A configuration. This additional stitch provides increased reinforcement for industrial sewing applications involving stretch materials, protective covers, and other textile products requiring reinforced seams.
The zig-zag width selector and stitch-length dial allow operators to adjust stitching according to the sewing operation and material. The locking zig-zag width regulator helps maintain the selected setting, while the walking-foot mechanism assists with feeding materials consistently.
Important: The 3A cam system is permanently configured during manufacture. The 146RB-3A-2 cannot be converted into a 1A or 2A machine by replacing its cam.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Consew |
| Model | 146RB-3A-2 |
| SKU | 146RB-3A-2 |
| Machine Type | Zig-Zag Lockstitch |
| Number of Needles | 1 (Single) |
| Feeding Mechanism | Drop Feed and Walking Foot |
| Workspace | Standard Workspace |
| Functions | Standard Functions |
| Stitch Configuration | 3A (Four-Step/Three-Stitch Zig-Zag) |
| Maximum Sewing Speed | 2,500 S.P.M. |
| Presser Foot Clearance | 25/64" (10 mm) |
| Maximum Stitch Length | 5 mm (5 S.P.I.) |
| Maximum Zig-Zag Width | 9 mm |
| Needle Bar Stroke | 1-11/32" (34 mm) |
| Needle System | 135 x 17 |
| Metal Bobbin | CS713 |
| Pre-Wound Bobbin | M |
| Hook | CS712 |
| Hook Type | Horizontal-Axis Transverse Rotary Hook |
| Bed Size | 7" x 18-7/8" (178 x 480 mm) |
| Work Space | 10" (255 mm) |
| Reverse Stitching | Yes |
| Cam System | 3A (Factory-Installed, Non-Interchangeable) |
Maximum sewing speed depends on zig-zag stitch width, material, and thread. The standard bed dimensions are listed for the 146RB series in the manufacturer catalog. Specifications and appearance are subject to change without notice.
146RB Series Stitch Configurations
Consew manufactures the 146RB series with three different factory-installed cam systems. Each configuration is a separate machine model designed for specific industrial zig-zag sewing applications.
- 146RB-1A-2: Standard zig-zag lockstitch configuration. Federal Stitch Type 304. Designed for sewing medium- to heavy-weight materials that are difficult to feed, including wet suits, shoes, boots, leather, and tarpaulins.
- 146RB-2A-2: Three-step/two-stitch zig-zag configuration. Federal Stitch Type 308. Designed for elastic and stretch materials, reinforced stitching, and products such as boat covers, truck covers, tents, awnings, sails, parachutes, and tarpaulins.
- 146RB-3A-2: Four-step/three-stitch zig-zag configuration. Performs similar operations to the 2A model while adding another stitch for increased seam reinforcement.
Important: The 1A, 2A, and 3A cam systems are factory-installed and non-interchangeable. A 146RB-3A-2 machine cannot be converted into a 146RB-1A-2 or 146RB-2A-2 by changing its cam. The required stitch configuration must be selected when purchasing the machine.
Additional Available Versions
- 146RB-1A-2: Standard zig-zag lockstitch configuration for medium- to heavy-weight materials that are difficult to feed.
- 146RB-2A-2: Three-step/two-stitch zig-zag configuration for elastic materials and reinforced stitching applications.
- 146RBL Long-Arm Version (Special Order): Available in corresponding stitch configurations with a 30" (765 mm) workspace and a bed size of 7" x 33-1/4" (178 x 848 mm).
- WS Wet Suit Version (Special Order): Available for sewing neoprene rubber.
- 146RB-2A-2 Special Fittings: Rope-end and rope-loop stitching fittings are available for compatible 2A configurations.
These versions and special fittings are separate offerings and are not included with the standard Consew 146RB-3A-2 model.
Optional Accessories
Optional pneumatic equipment may be available for compatible Consew 146RB series machine configurations, including:
- Air-operated pneumatic presser foot lift
- Pneumatic backtack equipment
Optional pneumatic equipment may be available through Clinton Industries. Equipment availability, installation requirements, and compatibility should be confirmed before ordering.
Note: Optional accessories are not included with the standard machine. The factory-installed 3A cam system cannot be converted to another stitch configuration.
Table & Servo Motor
This Package includes a Fully Assembled Table and a Servo Motor.
Downloads
Download the manufacturer catalog for the Consew 146RB series, including the 146RB-1A-2, 146RB-2A-2, and 146RB-3A-2 models.
Manufacturer specifications, optional accessories, available configurations, and product appearance are subject to change without notice. Confirm machine configuration and accessory compatibility before purchasing.
California residents: View Proposition 65 warning
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Attention California residents: California’s Proposition 65 entitles California consumers to special warnings for products that contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm if those products expose consumers to such chemicals above certain threshold levels. We know you’re concerned about product safety, and SewingMachinesPlus takes all necessary steps to comply with all applicable safety and health requirements.
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