The Mauser Spezial MH2645-170242-36-75 is a heavy-duty long-arm, single-needle industrial lockstitch sewing machine designed for demanding applications such as leather goods, upholstery, automotive interiors, technical textiles, canvas, and other heavy materials.
Featuring a powerful compound feed system, extended 750mm under-arm clearance, XXL vertical hook, automatic thread trimming, automatic back-tacking, and automatic presser-foot lifting, the MH2645 is built to provide reliable feeding, consistent stitching, and efficient handling of large and bulky workpieces.
Model: 170242-36-75
The 170242-36-75 configuration combines a single-needle setup with a long-arm design, automated functions, and a powerful 750W direct-drive motor. Its compound feed / triple-feed system combines bottom feed, needle feed, and alternating presser feet to help maintain positive and consistent material feeding, even when sewing multiple layers.
Subclass Breakdown – 170242-36-75
1 – Single-Needle Configuration:
Indicates the machine's single-needle configuration for industrial lockstitch sewing.
70242 – Equipment & Feature Class:
Indicates the machine configuration with automatic functions including an electromagnetic thread trimmer, electropneumatic seam back-tacking, automatic presser-foot lift, and an extra-large vertical XXL hook with a 32mm bobbin.
36 – Long-Arm Version:
The extended long-arm configuration provides approximately 750mm of under-arm clearance, making it easier to handle large and bulky workpieces such as automotive seats, upholstery panels, mattress sections, and large leather pieces.
75 – 750W Drive System:
Equipped with an integrated 750W energy-efficient direct-drive motor and onboard control system.
Compound Feed / Triple Feed System
The MH2645 uses a powerful compound feed system combining bottom feed, needle feed, and alternating walking presser feet. This coordinated feeding action helps prevent individual layers from shifting and improves material control when sewing thick, multilayered, or difficult materials.
Core Mechanical Features
Compound / Triple Feed: Bottom feed, needle feed, and alternating presser feet work together for consistent material feeding.
Maximum Stitch Length: Up to 9mm.
Alternating Foot Stroke: Adjustable up to 9mm.
High Presser-Foot Lift: Up to 20mm for easier loading and handling of thick materials.
Maximum Sewing Speed: Up to 3,000 stitches per minute, depending on material, stitch length, and foot-stroke settings.
Long-Arm Clearance: 750mm width with approximately 125mm height clearance.
XXL Hook: Extra-large vertical hook with a 32mm bobbin for increased lower-thread capacity.
Key Features
Heavy-Duty Construction: Designed for demanding applications involving leather, canvas, upholstery, automotive materials, and technical textiles.
Long-Arm Design: 750mm under-arm clearance provides substantial workspace for large and bulky materials.
Adjustable Foot Stroke: Foot stroke can be adjusted using the dial or knee switch.
Automatic Speed Limitation: Machine speed automatically adjusts according to foot stroke and feeding length to help protect the machine.
Wide Industrial Table & Stand: Provides a stable and spacious working area suitable for heavy-duty sewing applications.
Technical Specifications
Machine Type
Single-Needle Industrial Lockstitch
Model
MH2645-170242-36-75
Needle System
134-35 / DPx17
Needle Size
90–180
Maximum Stitch Length
9mm
Maximum Sewing Speed
3,000 stitches/min
Presser Foot Clearance – Sewing
10mm
Presser Foot Lift
Up to 20mm
Alternating Foot Stroke
Up to 9mm
Under-Arm Clearance – Width
750mm
Under-Arm Clearance – Height
125mm
Bobbin
32mm / 92 464 239 05
Recommended Thread
80/3 Nm – 15/3 Nm
Voltage
230V, 50/60Hz
Rated Power
750W
Sewing Head Weight
64kg
Gross Weight
120kg
Net Weight
108.5kg
Automatic Functions
Automatic seam back-tacking
Automatic thread trimming
Automatic sewing-foot lift
Additional thread tension
Quick foot-stroke adjustment via knee switch or dial
Automatic speed limitation according to foot stroke and feeding length
Recommended Applications
The MH2645 is designed for professional and industrial applications requiring strong, consistent feeding and large working clearance.
Leather goods
Automotive interiors and vehicle seats
Upholstery
Canvas and heavy fabrics
Technical textiles
Furniture manufacturing
Mattress and large-panel sewing
Heavy-duty garment production
High-Mortality / Commonly Replaced Parts
Industrial sewing machines operating with heavy materials and high production loads naturally experience wear on components exposed to friction, impact, and continuous mechanical stress. The following parts may require periodic inspection or replacement depending on usage and application.
Rotary Hook Assembly – XXL, 32mm: 92-464238-91
32mm Aluminium Bobbin: 92-464239-05
Moving Thread-Trimming Knife: 92-464254-05
Fixed Counter-Knife: 92-464575-05
Thread Clamping Plate: 92-464574-05
Needle Bar Thread Take-Up / Check Spring: 92-464300-06
Free Sewing Machine Training
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365-Day Support
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Important: Specifications, accessories, dimensions, and included components may vary according to machine configuration and manufacturer updates. Please refer to the latest manufacturer documentation for the exact specification of your machine.
