Identity verified · evidence for each owner answer
What is actually verified
Cited machine label — physical identity not yet accepted
The official evidence supports the displayed name or model label. SewGraph has not yet accepted one exact physical-machine entity for this route, so no compatibility answer is attached.
A cited label is not proof that similarly named, regional, revised, or same-code machines are physically identical.
Identity verified · evidence for each answer
Using and maintaining this machine
Check the conditions alongside each answer. Foot attachment, shank type and adapter requirements are separate; one does not establish universal accessory fit.
Features and specifications
Maximum sewing speed
conditional
Maximum sewing speed: 4,200 sti/min.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Standard buttonhole: width 4 mm × length 25 mm; maximum width 6 mm × length 120 mm requires replacing parts.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Feed direction: right for men's garments or left for ladies' garments.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value. Printed designation only; no product compatibility.
Machine head: LBH-1790AN, exclusive machine head for AC.
Only exact AC-172N-1790AN in right-page bottom buttonholing indexer table, JUKI 2025 English apparel catalog physical page 23/printed 38. Published specification, not a setting, retail fit or sibling value.
Identity families, physical traits, and OEM accessory groups stay separate. A group badge applies only to its named program and domains.
needle systemDP×5
Detailed specifications, compatible parts, and source library
Evidence coverage
Core answers and cited items
Machine category: Not yet established
Core domains answered: None yet
Domains with cited compatible items: None yet
Unknown is not incompatible. A missing answer means the current official evidence does not support one yet.
Specifications
Documented machine facts
Multiple cited representations for one field share one row. SewGraph preserves every value and exact proof passage; it does not guess which representation is “raw” or “normalized” when the public projection does not label that distinction.
Open the exact OEM PDF page or captured HTML edition when a safe destination exists; otherwise SewGraph labels the OEM support-page fallback honestly.
JUKI 2025 apparel general catalog
machine catalog
Open official source destination · 1 unique proof passage:Proof E1
Evidence library
5 exact proof passages from 1 OEM document
Every passage below says exactly what visible fact it proves. Repeated references to the same locator are counted once; identity evidence never counts as compatibility evidence.
Compatibility proof passages: 0. The passages below support identity facts only.
Open exact proof passages · 5 unique proof passages