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LCN 4040SE-78 AL Replacement Arm for 4040SE Series Door Closers - Replacement Arms
LCNReplacement Arms

LCN 4040SE-78 AL Replacement Arm for 4040SE Series Door Closers

The LCN 4040SE-78 AL is a replacement arm made of aluminum, compatible with the 4040SE series door closers. As a genuine LCN component, it ensures proper operation and fit for maintenance or repair of existing…

SKU 3G-OTH-501038

Also listed as: 4040SE78AL · 4040SE 78 AL · 4040SE-78-AL

Brand
LCN
Item
4040SE-78 AL Replacement Arm for 4040SE Series Door Closers
Part Number
4040SE-78 AL
Category
Replacement Arms
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

LCN
Manufacturer Part Number
4040SE-78 AL
Compatible with Series
4040SE

Technical Documents

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LCN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LCN 4040SE-78 AL is a replacement arm made of aluminum, compatible with the 4040SE series door closers. As a genuine LCN component, it ensures proper operation and fit for maintenance or repair of existing installations.

Frequently Asked Questions

What is the LCN 4040SE-78 AL door closer arm used for?

The LCN 4040SE-78 AL is a genuine replacement arm for LCN 4040SE series door closers. It is used to restore proper door control and closing force in commercial or industrial applications where the original arm is damaged or worn. 3G Electric supplies this aluminum arm for maintenance and repair.

What are the specifications of the LCN 4040SE-78 AL arm?

The LCN 4040SE-78 AL is an aluminum replacement arm with manufacturer part number 4040SE-78 AL. It is compatible exclusively with the LCN 4040SE series door closers. This genuine LCN component ensures correct fit and reliable operation for repair or retrofit of existing installations.

Where to buy the LCN 4040SE-78 AL door closer arm worldwide?

3G Electric supplies the LCN 4040SE-78 AL aluminum replacement arm to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this genuine LCN component for 4040SE series closers.

How to install the LCN 4040SE-78 AL replacement arm?

Installation of the LCN 4040SE-78 AL arm follows standard door closer arm replacement procedures. First, secure the door in the open position. Remove the old arm by loosening the mounting screws, then attach the new aluminum arm to the closer and bracket. Adjust closing speed per manufacturer guidelines.

Used in

Common applications for LCN
Commercial office buildings — LCN 4010 Series top frame-mount door closers with regular arm and adjustable spring size 6 for interior doors.
Healthcare facilities — LCN SEM7810 series electromagnetic door holders for holding fire-rated corridor doors open and releasing on alarm.
Educational institutions — LCN 4810 Series track arm door closers for high-traffic exterior doors in aluminum finish.
Industrial plants — LCN SEM7820-825 AL floor-mounted electromagnetic door holders for fire doors in manufacturing areas.
Retail entrances — LCN 4010 Series bronze door closers with non-hold open and regular arm for ADA-compliant opening force.
Hospitality venues — LCN magnetic door holders SEM7850-828 AL for wall-mounted hold-open on smoke doors in lobbies.
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LCN Products

3G Electric supplies LCN replacement arms. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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