If you’re choosing between single-coil (YO Spiral) and double-loop binding machines for notebooks or calendars, the two models are perfect examples: one automatic for single-coil (YO Spiral) and one semi-automatic for double-loop (DWC520A). This guide focuses on their core difference—single vs double coil—including binding effect, durability, and which fits your product. No complex terms, just clear comparisons.
All data comes from product details. The table highlights how coil type shapes key features:
Specification |
Model 1: Automatic Student Notebook Calendar YO Spiral Machine (Single Coil) |
Model 2: DWC520A Semi-Automatic Double-Loop Notebook Machine |
Coil Type Supported |
Single coil (YO Spiral: metal/plastic, ¼”–1” diameter) |
Double loop (metal, ⅜”–¾” diameter) |
Binding Principle |
Inserts 1 continuous spiral through holes; crimps ends to lock |
Forms 2 interlocked loops per hole; closes loops for tight hold |
Binding Effect |
Pages lay flat 180°; easy to flip single pages |
Pages stay secure (hard to pull loose); limited to 120° flip |
Automation Level |
Fully automatic (auto feeding + coil insertion + crimping) |
Semi-automatic (manual feeding; auto loop closing) |
Binding Speed |
35–45 notebooks/min (high-volume single-coil production) |
20–25 notebooks/min (steady double-loop binding) |
Max Paper Size |
A4 (297×210mm); fits student notebooks/calendars |
A5–A4 (148×210mm–297×210mm); fits thick notebooks/agendas |
Min Paper Size |
A6 (105×148mm); small pocket notebooks |
A6 (105×148mm); small planners |
Durability (Coil) |
Single coil bends easily (good for lightweight use: student notebooks) |
Double loop resists bending (great for heavy use: office agendas) |
Power Consumption |
1.0KW |
0.8KW |
Machine Dimensions |
1600×750×1400mm (industrial setup for bulk orders) |
1300×600×1200mm (compact for small workshops) |
Price Range (1 set) |
5,200–5,800 (bulk discount for 5+ sets) |
3,800–4,300 (entry-level for double-loop needs) |
Lead Time (1 set) |
12–15 working days |
8–10 working days (fast delivery for urgent orders) |
To help you pick, here’s a deep dive into what makes the two coil types unique—this is the core of choosing the right machine:
Binding Type |
Opening Angle |
Ideal Use Cases |
User Experience |
Single Coil (YO Spiral) |
180° |
Student notebooks, cookbooks |
Pages lay flat, enabling writing on both sides without holding the book |
Double Loop |
120° |
Office agendas, thick notebooks |
Tighter page hold, suitable for documents requiring extra durability |
Binding Type |
Durability |
Recommended Use Cases |
Single Coil |
Prone to bending under pressure |
Lightweight products like student notebooks, monthly calendars |
Double Loop |
Resistant to bending and breaking |
Heavy-use items such as daily agendas, work notebooks |
Binding Machine |
Automation Level |
Production Rate |
Ideal Batch Size |
Automatic YO Spiral Machine |
Fully automatic |
35–45 notebooks/min |
Large volumes (1,000+ units/day) |
DWC520A Double-Loop Machine |
Semi-automatic (manual feeding) |
20–25 notebooks/min |
Small to medium batches (200–500 units/day) |
Follow these guidelines to match the machine to your product:
Not sure if single or double coil fits your product? Send us your item type (e.g., “student notebook”)—we’ll recommend the right one!
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