juki · verified physical machine
verified exact machine · 1/3 core systems
Compatibility first
These states come from the cited public evidence, not from model-code patterns. Unknown is never treated as incompatible.
AnswerNot established from current official evidence
No direct bobbin class, dimensions, material, part number or bobbin-case answer is established.
none · 0 relationships · 0 cited system traits · 0 cited recommendations
AnswerDAx1
Direct exact-scope native evidence establishes DA x 1 for DDL-8700A-7, with the source-local supported range #9 to #11. The separate DDL-8700A instruction-manual alternate notation is not borrowed. No value propagates to DDL-8700, DDL-8700A, DDL-8700H or another -7 variant.
View Needle evidence · 1 unique proof passage: Proof E4
system · 0 relationships · 1 cited system traits · 0 cited recommendations
AnswerNot established from current official evidence
No direct presser-foot mount, shank, holder, attachment system or compatible-item answer is established.
none · 0 relationships · 0 cited system traits · 0 cited recommendations
Compatibility field map
A core answer does not complete every physical axis. Each field below is shown only when current accepted OEM evidence establishes it; all other axes remain explicitly unestablished.
View hook system evidence · 1 unique proof passage: Proof E3
Important: loading style does not establish Bobbin class, hook orientation, or interchangeability.
View needle system or type evidence · 1 unique proof passage: Proof E4
View supported sizes evidence · 1 unique proof passage: Proof E4
Important: a recommendation is not an exclusive system requirement unless the OEM says so.
Important: a Snap-On attachment does not establish shank height, holder geometry, stitch-width family, or broad foot fitment.
Cited machine facets
Identity families, physical traits, and OEM accessory groups stay separate. A group badge applies only to its named program and domains.
Evidence coverage
Machine category: Not yet established
Core domains answered: needle
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
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.
Official source library
Open the exact OEM PDF page or captured HTML edition when a safe destination exists; otherwise SewGraph labels the OEM support-page fallback honestly.
brochure
Open official source destination · 1 unique proof passage: Proof E1
Evidence library
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.
What this passage proves
機種名 DDL-8700 DDL-8700-7 DDL-8700A DDL-8700A-7 DDL-8700H
What this passage proves
DDL-8700A-7
What this passage proves
機種名 DDL-8700 DDL-8700-7 DDL-8700A DDL-8700A-7 DDL-8700H DDL-8700H-7DDL-8700-7/SC-920C/M921本針本縫自動糸切りミシン 用途区分 中厚物 薄物 厚物 最高縫い速度 5,500sti/min＊ 5,000sti/min＊ 4,000sti/min＊ 最大縫い目長さ 5mm 4mm 4mm 5mm 針棒ストローク 30.7mm 35mmDDL-87001本針本縫ミシン 押え上昇量 手動5.5mm/膝上げ13mm 手動4mm/膝上げ9mm 手動5.5mm/膝上げ13mm 使用針（出荷時装着番手） DB×1（#14）#9～#18 DA×1（#9）#9～#11 DB×1（#21）#19～#23 送り歯 4枚歯 3枚歯 4枚歯 3枚歯 4枚歯 使用釜 全回転自動給油釜
What this passage proves
機種名 DDL-8700 DDL-8700-7 DDL-8700A DDL-8700A-7 DDL-8700H DDL-8700H-7DDL-8700-7/SC-920C/M921本針本縫自動糸切りミシン 用途区分 中厚物 薄物 厚物 最高縫い速度 5,500sti/min＊ 5,000sti/min＊ 4,000sti/min＊ 最大縫い目長さ 5mm 4mm 4mm 5mm 針棒ストローク 30.7mm 35mmDDL-87001本針本縫ミシン 押え上昇量 手動5.5mm/膝上げ13mm 手動4mm/膝上げ9mm 手動5.5mm/膝上げ13mm 使用針（出荷時装着番手） DB×1（#14）#9～#18 DA×1（#9）#9～#11 DB×1（#21）#19～#23
Evidence review status
Dossier review completion means every tracked facet received a disposition; it does not mean every machine fact or compatibility axis is known.
Supported public fields (4): model codes, needle, physical identity, preferred official name
Unresolved fields (9): aliases, bobbin, lifecycle market, machine type, oem program groups, part relationships, presser foot, product line, series
Review controls checked (2): source documents and publication/conflict handling are process receipts, not additional machine facts.
Blocked facets: oem program groups, part relationships
Review pass complete — not “all known.” Every tracked field has a recorded disposition; the unresolved fields above remain unknown.
Current blockers: blocked:oem program groups, blocked:part relationships
Public snapshot a1cc1aceef228fcf33329e37165ab888ce5b9fe3f13eb56967ae0fbf41d8d8a7
Catalog e156281c7d3048027b5ac89e7476be8f54dd5a9309505e96260b0455d3cd2a7e · exact native quotes only · dossier method sewgraph-model-dossier-v2