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LCN 4810 Series Pneumatic Operator Cylinder Assembly
Professional Pneumatic Door Control Component
The LCN 4810 Series Pneumatic Operator Cylinder Assembly provides essential pneumatic control functionality for commercial door automation systems. This cylinder-only component is designed for replacement or service applications within the proven 4810 Series pneumatic operator platform, delivering reliable pneumatic actuation for demanding commercial environments.
Professional Features & Benefits
- 4810 Series Compatibility: Engineered specifically for LCN 4810 Series pneumatic operators ensuring precise fit and optimal performance.
- Commercial-Grade Construction: Built to withstand the demands of high-traffic commercial applications with durable pneumatic components.
- Replacement Component Design: Cylinder-only configuration allows for targeted service and maintenance of existing pneumatic operator systems.
- Professional Installation: Designed for installation by qualified technicians familiar with pneumatic door control systems.
- Proven Platform Integration: Works seamlessly within established 4810 Series pneumatic operator configurations for reliable door automation.
Technical Specifications
- Commercial/Residential: Commercial
- Department: Door Hardware
- Parts and Accessories Type: Installation Accessories
- Product Attribute: Parts and Accessories
- Product Category: Door Controls
- Product Group: Door Controls
- Product Model: 4811-3971
- Product Subgroup: Parts and Accessories
- Product Type: Parts and Accessories
- Series: 4810 Series
- Subcategory: Parts and Accessories
Professional Applications
- Commercial Building Door Automation
- Healthcare Facility Access Control
- Educational Institution Door Systems
- Retail Establishment Entry Management
- Industrial Facility Access Points
- Government and Municipal Buildings
- Multi-Tenant Commercial Properties
Why Choose LCN Quality?
LCN pneumatic operator components deliver professional-grade reliability with precision-engineered construction designed for commercial door control applications. The 4810 Series platform represents proven pneumatic technology engineered for demanding commercial environments where dependable automated door operation is essential.
Manufacturer Resources
LCN Full Line Catalog
Product Specs
- Series:
- 4810 Series
- Subcategory:
- Parts and Accessories
- Product Group:
- Door Controls
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Parts and Accessories
- Commercial/Residential:
- Commercial
- Parts and Accessories Type:
- Installation Accessories
- Product Attribute:
- Parts and Accessories
- Product Model:
- 4811-3971
- Product Category:
- Door Controls
- Department:
- Door Hardware
LCN 4811-3971 689 – Frequently Asked Questions
1) What exactly is the LCN 4811-3971, and is it a complete door operator?
It is the pneumatic cylinder assembly only, a service component for LCN 4810 Series pneumatic door operators. You get the cylinder, not a full operator, not arms, and not a control package. If your 4810 operator is otherwise sound and the cylinder has failed, this is the piece that replaces it. If you are specifying a new automatic opening from scratch, you need a complete 4810 Series operator instead.
2) Will the 4811-3971 cylinder fit an LCN 4810 Series operator already installed in my building?
Yes. The 4811-3971 cylinder assembly is built specifically for the LCN 4810 Series pneumatic operator platform, so it drops into existing 4810 Series configurations as a service part. It is not a cross-series part: do not order it for an LCN hydraulic closer or a different operator series.
3) My door closer arm broke, not the operator. Is this the part I need?
No. The 4811-3971 is a pneumatic operator cylinder, not a closer arm, and it does nothing for a manual door closer. For closer arms, look at the Deltana DCHA1050 hold open arm for the DC10 closer, the Deltana DCCA4041 cushion arm for the DC40, or the Dorma 15323 1-1/2 inch offset bottom arm with cover. The Cal-Royal 900 Series accessories kit covers 900 Series closer hardware.
4) Can a Deltana DCCA4041 cushion arm or DCHA1050 hold open arm be used in place of the LCN 4811-3971 pneumatic operator cylinder?
No. The LCN 4811-3971 is a pneumatic operator cylinder assembly built for the LCN 4810 Series pneumatic operator platform, so it is an air-actuated power component rather than a linkage part. The Deltana DCCA4041 is a cushion arm for the DC40 door closer and the DCHA1050 is a hold open arm for the DC10 door closer - both are mechanical arms sized to their own closer bodies and neither provides pneumatic actuation. If the arm on a Deltana DC40 or DC10 closer is what failed, those are the parts to order; if the cylinder on a 4810 Series operator failed, the 4811-3971 is the part.
5) Is this an owner-maintenance part or does it need a door hardware technician?
This one goes to a technician. Swapping a pneumatic cylinder means depressurizing the air supply, pulling the old cylinder out of the operator, and re-timing open speed and check on the system afterward. LCN specifies installation by qualified technicians familiar with pneumatic door control systems. A property manager ordering it should have the service contractor on site the same day.
6) Can I standardize on the 4811-3971 as a stocked spare across a campus of automatic doors?
Only where the openings run LCN 4810 Series pneumatic operators. Because it is a single-finish, single-configuration service part with no handing or size options to specify, it stocks cleanly as an MRO spare for a facility that has standardized on 4810 operators. Facilities running a mix of operator brands or hydraulic closers will need separate spares for those.
7) Is the Cal-Royal 900 Series accessories kit a substitute for the LCN 4811-3971?
No. The Cal-Royal 900 Series kit is a door closer accessories kit matched to the Cal-Royal 900 Series closers, while the 4811-3971 is the pneumatic cylinder assembly for LCN 4810 Series operators. They serve different systems entirely - the Cal-Royal kit supports a surface closer installation, and the LCN part replaces the actuating cylinder inside a pneumatic operator. Order the LCN part by its model number 4811-3971 when servicing a 4810 Series unit.
8) What finish does the LCN 4811-3971 pneumatic cylinder come in?
One finish only: 689 aluminum. There is no other option on this part, so if the rest of your 4810 operator hardware is a painted or plated finish, the cylinder will read as standard aluminum. On most installs the cylinder sits inside the operator housing where finish is not visible anyway.
9) Is the LCN 4811-3971 rated for commercial traffic, or is it a light-duty part?
Commercial. The 4811-3971 is classified as a commercial-grade component and is used on automated entrances in healthcare, schools, retail, industrial plants, government buildings and multi-tenant properties. It is not a residential item and is not sold for residential door automation.
10) Would a Dorma 15323 offset bottom arm work with an LCN 4810 Series operator?
No. The Dorma 15323 is a 1-1/2 inch offset bottom arm with cover, a standard duty component used with pivoted or floor closer hardware and carrying no fire rating. The LCN 4811-3971 is the pneumatic cylinder assembly inside a 4810 Series operator and is a commercial-duty installation accessory for that platform only. The two mount in different places on the opening and are not interchangeable.
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Does the LCN 4811-3971 689 come with a warranty?
Absolutely. The LCN 4811-3971 689 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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