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Catalogs
Juki Industrial Sewing Machine
TSH-411 TSN-421 TSC-441 TSU-471

TSH-411 TSN-421 TSC-441 TSU-471

Product catalog summary

Overview

This document details specifications and features of JUKI's semi-long cylinder bed lockstitch machines designed for extra-heavy-weight materials. The models covered include TSH-411, TSN-421, TSU-471, and TSC-441, each featuring different feed mechanisms and specialized functions.

Feed Systems and Applications

TSH-411 (Bottom Feed): Suitable for decorative stitching on shoes, bag handles, and similar items. Can be modified with a roller presser foot for sewing sharp curves.
TSN-421 (Needle Feed): Combines bottom feed and feed dog feed to ensure even material feeding, ideal for shoes and seat belts.
TSU-471 (Top & Bottom Feed): Adjustable top feed within ±30% of bottom feed, used for gloves, tents, bags, shirring, and tape attachment with binders.
TSC-441 (Unison Feed): Integrates top and bottom feed with needle feed for higher feed efficiency and quality seams, suitable for bags, pouches, shoes, and seat belts.

Key Features

Presser Foot Lift: High lift capability up to 20 mm by pedal and 12 mm by hand, facilitating smooth handling of extra-heavy materials.
Large Shuttle Hook: Reduces bobbin thread replacement frequency, optimized for lower-count threads used in heavy materials.
Bobbin Winder: Built into the front portion of the machine arm for easy operation.
Workspace: Wide free space under the machine arm (420 mm) allows easy placement and removal of large sewing products and supports sewing sharp curves.

Technical Specifications

Model	Feed System	Max Sewing Speed	Max Stitch Length	Needle Bar Stroke	Presser Foot Lift	Thread Take-up	Hook Type	Needle Size	Thread Size	Lubrication	Free Space for Sewing	Cylinder Bed Diameter	Machine Weight
TSH-411	Bottom Feed	800 rpm	11 mm (normal/reverse feed)	56 mm	20 mm (pedal), 12 mm (hand)	Cam-type	Large shuttle hook	Nm130–Nm280 (standard Nm230)	#8–#0 (Japanese yarn count)	By hand	420 mm	φ81 mm	56 kg
TSN-421	Needle Feed	800 rpm	11 mm	56 mm	20 mm / 12 mm	Cam-type	Large shuttle hook	Nm130–Nm280	#8–#0	By hand	420 mm	φ81 mm	56 kg
TSU-471	Top & Bottom Feed	800 rpm	11 mm	56 mm	20 mm / 12 mm	Cam-type	Large shuttle hook	Nm130–Nm280	#8–#0	By hand	420 mm	φ81 mm	56 kg
TSC-441	Unison Feed	800 rpm	11 mm	56 mm	20 mm / 12 mm	Cam-type	Large shuttle hook	Nm130–Nm280	#8–#0	By hand	420 mm	φ81 mm	56 kg

Ordering Information

When placing orders, specify the model name exactly as follows: TSH-411, TSN-421, TSU-471, or TSC-441. Presser foot options include standard or roller presser foot (code R). Auto-lifter options include knee-switch type (code A), pedal type (code B), or no auto-lifter (code ×). Contact the nearest JUKI distributor for orders.

Additional Notes

Specifications and appearance are subject to change without prior notice.
Users should read the instruction manual carefully before operating the machine to ensure safety.
Document date: August 2000.

Catalog excerpts

1-needle, Semi-long Cylinder Bed, Lockstitch Machine with a Large Shuttle-hook for Extra-heavy-weight Materials

Open the catalog to page 1

Four different feeding methods are available. Select the method which best suits the use of your machine presser foot with a roller With its bottom feed and machine sews articles entirely free from uneven material feed. Use: Shoes, seat belts, adjustable within the range Use: Gloves, tents, bags, needle feed system. This ensures a higher feed quality seams without uneven material feed. shoes, seat belts, etc. Higher lift of the presser foot The lifting range of the presser foot is as high as 20 mm for smooth placement/removal of extra-heavy-weight materials. Frequency of bobbin thread The machine...

Open the catalog to page 2

All Juki Industrial Sewing Machine catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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