LCN 4040 Series
Grade 1 Heavy Duty Door Closers
4041 with Regular Arm and Delayed Action
- The 4040 is LCN’s most flexible heavy duty closer
- Designed for institutional and other rugged high traffic applications
- Exceeded 10 million cycles in independent testing
- Cast iron cylinder offers proven durability
- Forged steel main arm
- Double heat-treated steel pinion
- Slim line cover is standard
- Non-handed
- Non-sized (1-6) cylinder is adjustable for interior doors to 5’0” (1524mm) and exterior doors to 4’0” (1219mm)
- Closer mounts hinge side and top jamb on either right or left swinging doors
- Delayed Action: Delays closing from 120° to 70°; delay time adjustable up to approximately 1 minute
- All-weather fluid eliminates seasonal adjustments
- Maximum opening: 120°
- FAST™ power adjust allows accurate on-site spring power adjustment to meet the condition of the opening
- UL and cUL listed for self-closing, fire-rated doors without hold-open
- Tested and certified under ANSI Standard A156.4, grade one
- Closer meets ADA requirements (see below)
| LCN Formula For Success |
Cast Iron
Heavy duty cast iron. There isn’t a stronger, harder, more reliable material for door closers that are expected to deliver millions of cycles. Cast iron is more compatible with high grade steel components and is more resistant to the wear of
millions of opening/closing cycles.
Forged Steel Arms
The closing power and control generated within LCN closers is transferred to the door through forged steel arms. Forged steel arms have greater strength, better appearance and less bulk.
Chrome Silicon
Many closer manufacturers use less expensive oil tempered springs but LCN engineers know that such a spring loses up to 20% of its power after a few thousand cycles. The chrome silicone springs used in LCN closers have the strength to perform beyond 10 million cycles.
Heat Treated
LCN forged steel pinions have larger, stronger teeth and are double heat treated for the greatest possible strength on the shaft. Heat treating makes the pinion harder, better able to resist wear after
years of service and results in less stress on the cylinder.
Hydraulic Fluid
LCN uses a special formula hydraulic fluid that acts as an insulator to keep closer components working smoothly. This unique all weather, fire resistant hydraulic fluid eliminates the need for seasonal adjustments.
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For years, hardware professionals have used terms such as “life cycle costing,”“life of the product” and “product value.” Bottom line, they’re talking about products built to perform for many years with little or no service. Independent tests have shown that heavy-duty LCN closers go well beyond 10 million cycles, a closer record. But how well will LCN perform after decades of opening and closing cycles on school, hospital, church, corporate building and stadium doors? LCN closers are still going strong after 20, 30, even 40 years of service.
*Maximum opening force
