Clamshell mechanisms: The powerhouses of large-format archiving
When standard ring mechanisms reach their capacity limits, it’s time for the clamshell mechanism. This system features a robust metal clamshell that is opened and closed via a lever mechanism. They are the classic component for wide folders and enable hundreds of documents to be bundled efficiently without the mechanism buckling under the weight. At moog & langenscheidt, you can obtain bow mechanisms that impress with their precise workmanship and exceptionally smooth operation.
Maximum stability for heavy files
Bow mechanisms offer key design advantages that make them indispensable in the rigours of everyday office life and in long-term archives:
- High capacity: Designed for spine widths from 50 mm to 80 mm, these mechanisms effortlessly handle extensive files.
- Secure fastening: The clip closes flush and holds the sheets firmly in place, even when the folder is being transported.
- Easy page turning: Despite the large volume of paper, the shape of the clip allows for smooth browsing through the documents.
- User-friendliness: The folder opens effortlessly via the lever, which increases working comfort, particularly when there are frequent changes to the file contents.
Quality for professionals: Focus on durability
In archives and government offices, mechanisms often need to function for decades. Our lever mechanisms have been developed precisely for this durability:
- Robust materials: High-quality, finished steel ensures corrosion protection and long-lasting dimensional stability.
- Versatile options: We stock clip mechanisms in various sizes to suit your individual filing systems.
- Easy assembly: The mechanisms are designed for standard riveting, allowing them to be quickly integrated into cardboard or plastic covers.
Why buy ring mechanisms from moog & langenscheidt?
Moog & Langenscheidt has stood for expertise in binding technology for over 100 years. When you buy ring mechanisms, you benefit from our expert knowledge and a service tailored to your needs.
- Fast availability: Thanks to our warehouse capacity, we dispatch your order immediately so that your archiving projects do not come to a standstill.
- Excellent value for money: Benefit from attractive terms for high-quality industrial goods directly from the specialist retailer.
- Expert advice: Our team will be happy to help you find the right mechanism for your specific folder size and number of sheets.
Frequently asked questions (FAQ)
How many sheets fit into a standard lever arch mechanism?
Depending on the paper weight, a classic lever-type ring binder mechanism for 80 mm binders holds approximately 500 to 600 sheets (80 g/m²). The 50 mm version holds approximately 350 sheets.
Are the matching Compressor Bars included in the delivery?
As standard, we offer the mechanisms individually, but we stock the matching Compressor Bars as essential accessories in our range to further compress the stack of paper.
Can U-shaped mechanisms also be fitted in existing folders?
Yes, provided the hole spacing of the riveting matches. Our mechanisms comply with current industry standards, making it easy to replace or repair high-quality folders.