Pemko HM-HD1 Series Heavy Duty...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$378.00
$274.28
Pemko HM-HD1 Series Heavy Duty Half Mortise Continuous Geared Hinge

Pemko HM-HD1 Series Heavy Duty Half Mortise Continuous Geared Hinge

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Model: CHM83HD1
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$378.00
$274.28
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HM Series

The HM Series Half Mortise Continuous Geared Hinge is designed mainly for retrofit work and is applied to the exposed surface of the frame and the door edge. This hinge is available in standard and heavy duty models, and requires only 5/32" of clearance.

Features
  • Standard and heavy duty versions available
  • For new or retrofit work on swinging type fire doors
  • Applied to the exposed surface of the frame and the door edge
  • Designed to require only 5/32" clearance, allows for adjustments to properly align
  • Frame portion fasteners are #12-24 x 7/16" Phillips Head Type C, threadforming
  • Door portion fasteners are #12-24 x 7/16" FHUC, Type C, threadforming
  • Wood screws available on request
  • Custom lengths available
  • Special FirePins are only required on 3-Hour (A-Label) assemblies
  • Certain door and frame conditions may require an extra 1/32"-1/16" clearance
Benefits
  • Removal of hinge reinforcements in the door and frame is not advised
  • Hollow metal door and frame manufacturers’ standard is acceptable
  • Guaranteed for the life of the opening against defects in material or workmanship
  • Excessive clearance on fire rated assemblies may violate the requirements for NFPA 80

Specifications

  • Grade: Grade 1
  • Hinge Material: Aluminum
  • Hinge Mounting Type: Half Mortise
  • Hinge Strength: Heavy Weight
  • Handing: Non-handed
  • Fastener: Teks
  • Fastener Type: Self Drilling
  • Maximum Door Thickness: 1 3/4"
  • Minimum Door Thickness: 1 3/4"
  • Maximum Door Width: 4'
  • Maximum Length: 10'
  • Minimum Length: 79"
  • Maximum Swing: 180°
  • Minimum Hinge Clearance: 5/32"
  • Weight: 1.15lbs. per foot
Certifications
  • Health Product Declaration (HPD)
  • UL 10C - Standard for Positive Pressure Fire Tests of Door Assemblies
  • ANSI/BHMA Standard A156.26
 
RESOURCES & DOWNLOADS

Pemko Installation Instructions

Manufacturer Resources

Product Specs

Subcategory:
Continuous Hinges
Grade:
Grade 1
Product Group:
Door Hinges and Pivots
Product Subgroup:
Continuous Hinges
Product Type:
Continuous Hinges
Product Model:
HM-HD1
Product Category:
Door Hinges and Pivots

Pemko CHM83HD1 – Frequently Asked Questions

1) What is the Pemko HM-HD1 series heavy duty half mortise continuous geared hinge used for?
This heavy duty continuous geared hinge is designed for high-frequency commercial doors that need smooth operation and long service life. The half mortise design allows installation where only one side of the door frame can be mortised.
2) What door weights and sizes can this hinge support?
The HM-HD1 series supports heavy commercial doors. Verify specific weight capacity and door dimensions with the manufacturer's specifications for your door height and width requirements.
3) How do I determine the correct handing for this hinge?
Stand on the secure side of the door. If hinges are on your right, order right hand. If hinges are on your left, order left hand. The geared mechanism requires specific handing for proper operation.
4) What finishes are available for the HM-HD1 series?
Standard finishes typically include mill aluminum, dark bronze anodized, and painted options. Check the specific model number for available finishes as options vary by series configuration.
5) What makes this a heavy duty grade hinge?
The HD designation indicates reinforced construction with thicker materials and enhanced bearing surfaces. The geared mechanism provides smoother operation under heavy use compared to standard continuous hinges.
6) Does this hinge meet building code requirements?
Pemko continuous hinges are designed to meet commercial building codes when properly specified. Verify compliance with local fire, accessibility, and security code requirements for your specific application.
7) What accessories are available for this hinge series?
Common accessories include matching strike plates, mounting screws, and adjustment tools. Check with the manufacturer's catalog for specific accessories compatible with your hinge model number.
8) How is the half mortise design installed?
The frame leaf mortises into the door frame while the door leaf surface mounts to the door. Follow the manufacturer's template for precise mortise dimensions and screw placement patterns.
9) How do I maintain and adjust this geared hinge?
Clean the hinge pin channel regularly and apply light machine oil to the geared mechanism as specified. Adjustment screws allow for minor door alignment corrections without removing the hinge.
10) Are there similar Pemko hinge models available?
Pemko offers full mortise versions and standard duty continuous hinges. Browse our Pemko hardware collection for related hinge options and door accessories.
11) Can this hinge work in outdoor applications?
Weather resistance depends on the finish selected. Anodized and powder-coated finishes provide better corrosion protection for exterior use. Verify environmental suitability with finish specifications.
12) How do I measure for the correct hinge length?
Measure the full height of the door opening. Continuous hinges typically run nearly the full door height. Confirm exact length requirements with the door manufacturer's specifications.
How fast can I get the Pemko CHM83HD1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko CHM83HD1 come with a warranty?
Absolutely. The Pemko CHM83HD1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko CHM83HD1?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pemko CHM83HD1 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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