Industrial machine record
Sailrite Ultrafeed LS
Industrial walking-foot lockstitch machine
Sailrite specifies needle systems 135x16 and 135x17 for the Ultrafeed LS.
Verified compatibility
| Part or system | Relationship | Status | Evidence note |
|---|---|---|---|
| Needle System 135x16 | Officially compatible | CONFIRMED | Sailrite specifies needle systems 135x16 and 135x17 for the Ultrafeed LS. |
| Needle System 135x17 | Officially compatible | CONFIRMED | Sailrite specifies needle systems 135x16 and 135x17 for the Ultrafeed LS. |
| Sailrite A036 Presser Foot Screw | Officially compatible | CONFIRMED | Sailrite lists A036 for both inside and outside presser feet on the Ultrafeed LS. |
Machine specifications
- Needle systems
- 135x16 and 135x17; sizes 10-22
- Feed
- Walking foot
- Maximum stitch length
- 6 mm
- Needle-bar stroke
- 34 mm
What this machine is used for
A manufacturer-documented machine record with verified technical details and system relationships.
- Canvas
- Sailmaking
- Upholstery
Sources and scope
Compatibility is limited to facts explicitly stated in the cited manufacturer documentation.
- Sailrite Ultrafeed LS Walking Foot Sewing Machine Package Sailrite · Official product or support page · Tier 2
- Presser Foot Screw for Ultrafeed and Leatherwork Sailrite · Official replacement-parts page · Tier 1
Last checked: August 2026. See how SewFitGuide verifies compatibility.