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Ives Center Hung Pivot Set 600lb Capacity with Bottom Base Mount
Heavy-Duty Door Support System for Commercial Applications
The Ives Center Hung Pivot Set delivers professional-grade door support with 600 pound maximum load capacity for heavy commercial doors. This complete pivot system includes top and bottom components designed for doors with 1-3/4" minimum thickness and maximum dimensions of 4'0" X 8'0". The system features adjustable floor to door clearance from 3/16" to 3/4" and 3/16" vertical adjustment range with positive locking mechanism for precise installation.
Professional Features & Benefits
- Heavy-Duty Load Capacity: Supports up to 600 pounds maximum door weight for large commercial doors and high-traffic applications.
- Adjustable Clearance Range: Floor to door clearance adjustable from 3/16" to 3/4" with 3/16" vertical adjustment range and positive locking mechanism.
- Door Compatibility: Recommended for doors with 1-3/4" minimum thickness and maximum size of 4'0" X 8'0" for optimal performance.
- Structural Load Distribution: Reduces stress on door frame by distributing weight throughout floor and building structure for enhanced durability.
- Superior Construction: All exposed parts made of brass for maximum corrosion resistance and long-term reliability in commercial environments.
- Fire Rating Compliance: UL 10C tested and approved for 20 minutes, meeting fire safety requirements for commercial applications.
- ANSI Grade 1 Certification: Certified to ANSI 156.26 Grade 1 standards exceeding industry performance requirements.
- Easy Installation: Tilt-on bearing and bearing pin design with precision bearings for smooth operation and simplified installation process.
Technical Specifications
- ANSI/BHMA: ANSI/BHMA A156.4 C07032
- Application: Standard Door
- Commercial/Residential: Commercial
- Department: Door Hardware
- Door Hand Direction: Non-Handed
- Door Weight: Up to 600 lbs
- Duty Level: Heavy Duty
- Electronic: No
- Fire Rated Time: 20 minutes
- Fire Rating: Yes
- Hang Type: Center Hung
- Mounting Method: Center Hung
- Pivot Type: Top & Bottom
- Product Attribute: Pivots
- Product Category: Door Hinges and Pivots
- Product Group: Door Hinges and Pivots
- Product Model: 7256
- Product Subgroup: Pivots and Pivot Sets
- Product Substrate: Brass
- Product Type: Pivots - Center Hung
- Subcategory: Hinges and Pivots
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness of 1-3/4" minimum and maximum door size of 4'0" X 8'0".
- Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for both top and bottom pivot components.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for center hung pivot installation.
- Install bottom pivot with base mount first, then position top pivot component using tilt-on bearing and bearing pin design.
- Adjust floor to door clearance within the 3/16" to 3/4" range and utilize the 3/16" vertical adjustment range with positive locking mechanism for proper alignment.
- Test pivot operation to verify smooth door movement and proper load distribution. Make final adjustments as needed and refer to manufacturer documentation for complete installation details.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Ives Quality?
Ives Center Hung Pivot systems deliver professional-grade reliability with brass construction and precision bearings rated for 600 pound load capacity. ANSI 156.26 Grade 1 certification and UL 10C fire rating approval demonstrate superior quality standards. Engineered for demanding commercial applications where dependable performance and structural load distribution are essential for heavy door installations.
Manufacturer Resources
Ives Full Line Catalog
Product Specs
- Product Group:
- Door Hinges and Pivots
- Subcategory:
- Hinges and Pivots
- Hang Type:
- Center Hung
- Product Subgroup:
- Pivots and Pivot Sets
- Product Type:
- Pivots - Center Hung
- ANSI/BHMA:
- ANSI/BHMA A156.4 C07032
- Door Weight:
- Up to 600 lbs
- Commercial/Residential:
- Commercial
- Duty Level:
- Heavy Duty
- Fire Rated Time:
- 20 minutes
- Electronic:
- No
- Pivot Type:
- Top & Bottom
- Mounting Method:
- Center Hung
- Application:
- Standard Door
- Product Attribute:
- Pivots
- Product Model:
- 7256
- Door Hand Direction:
- Non-Handed
- Fire Rating:
- Yes
- Product Category:
- Door Hinges and Pivots
- Product Substrate:
- Brass
- Department:
- Door Hardware
Ives 7256 SET US26D – Frequently Asked Questions
1) Do I need to order left hand and right hand versions of the Ives 7256 pivot?
No. The 7256 is non-handed, so one part number covers both swings and you do not specify handing on the order. That matters if you are buying for a run of openings with mixed swings, because you are stocking a single item instead of two. What you do specify is finish and whether you want the complete set, the top pivot alone, or the bottom pivot alone.
2) Is the Ives 7256 pivot fire rated for a 20 minute door assembly?
Yes. The 7256 center hung pivot is UL 10C tested and approved for 20 minutes. That is the limit of the rating on this set, so it suits a 20 minute opening, and it is not the pivot to spec on a 45, 60, or 90 minute assembly. Among the other center hung pivots ZenSupply carries, the Dorma CP440, Dorma 8062, Hager 500, 510, 511, and 512 are not fire rated at all, so if the rating is what your inspector is looking for, the 7256 is the one in that group that carries it.
3) What do I order to get both the top and bottom pivot for one door?
Pick the Pivot Set (Top and Bottom) option, which is the complete 7256 system for one opening, for example 7256 SET US26D in satin chrome. The top pivot and the bottom pivot are also sold individually, ordered as 7256 TOP or 7256 BTM in the same finish, which is what you want when you are replacing a worn bottom pivot on an existing door rather than hanging a new leaf. Ordering a top only or bottom only will not hang a door on its own.
4) Should I use a center hung pivot or offset pivots on a heavy commercial door?
Center hung means the door turns on a spindle set roughly on the centerline of the leaf, so it swings on a centered axis and the load is carried down through the bottom pivot into the floor and the building structure instead of hanging off the frame. That is why the 7256 handles up to 600 lbs where butt hinges on the same frame would not. Offset pivots hang the leaf on an axis set forward of the door face and are typically what aluminum storefront leaves use: ZenSupply carries the Kaba Ilco IL-OP-12 for Armalite and Trulite style doors, the IL-OP-14 for US Aluminum and Arcadia, and the IL-OP-15 for Pittco and Efco. If your door is an aluminum storefront leaf, those offset series are the fit, not a center hung set.
5) The door is 1-3/8 inch thick. What center hung pivot fits it instead of the Ives 7256?
The Ives 7256 center hung pivot set is recommended for doors of 1-3/4 inch minimum thickness, so a 1-3/8 inch leaf falls below what it is set up for. The Hager 500 full mortise center hung pivot with rack and pinion states a door thickness range of 1-3/8 inch to 1-3/4 inch and is standard weight brass construction at a standard duty level, so it covers the thinner leaf as well as a 1-3/4 inch door. The trade in specification is duty and load: the 7256 is heavy duty and carries doors up to 600 lbs.
6) Can an Ives 7256 center hung pivot be used on an aluminum storefront entrance door?
The Ives 7256 is a center hung top and bottom pivot set built for a standard door of 1-3/4 inch minimum thickness with a maximum door size of 4'0" X 8'0", and it hangs the door on its center line. Aluminum entrance doors from the storefront lines are normally hung on offset pivots cut to that manufacturer's stile, which is a different hanging geometry. Kaba Ilco publishes offset pivot series matched to those door lines: the IL-OP-12 Series for Armalite and Trulite style doors, the IL-OP-13 Series 1/8 inch recessed pivot set for aluminum doors and frames in YKK style, the IL-OP-14 Series for US Aluminum and Arcadia style doors, and the IL-OP-15 Series for Pittco and Efco style doors. Match the offset series to the door manufacturer rather than substituting a center hung set into an aluminum stile.
7) Which center hung pivot set is approved for a 20 minute fire rated door opening?
The Ives 7256 center hung pivot set is the fire rated choice among the center hung and offset pivots commonly cross shopped with it. It is UL 10C tested and approved for 20 minutes and certified to ANSI/BHMA A156.4 C07032. The Dormakaba CP440 double acting center hung pivot set, the Dorma 8062 walking beam top pivot, the Hager 500 full mortise center hung pivot, the Hager 510, 511 and 512 hospital pivot sets, and the Kaba Ilco IL-OP-12, IL-OP-13, IL-OP-14 and IL-OP-15 offset pivot series all carry a fire rating of No. If the opening is in a rated wall, that distinction decides the order.
8) How much floor clearance can I set with the Ives 7256 bottom pivot?
Floor to door clearance on the 7256 adjusts from 3/16" to 3/4", with a 3/16" vertical adjustment range and a positive locking mechanism to hold the setting. That range is what lets you clear carpet, a transition strip, or an out of level slab without shimming the door. Set the clearance during install, lock it, then check the swing through the full arc before you call it done.
9) Is the Ives 7256 pivot ANSI Grade 1?
The 7256 carries ANSI/BHMA A156.4 C07032 and is certified to ANSI 156.26 Grade 1. For a facility standardizing on Grade 1 hardware across an opening schedule, that is the line to put on the submittal, alongside the 20 minute UL 10C rating and the 600 lb capacity.
10) I'm replacing a worn bottom pivot on an existing door. Can I buy just the bottom half?
Yes, the bottom pivot is sold on its own as 7256 BTM in any of the thirteen finishes, for example 7256 BTM US26D in satin chrome or 7256 BTM BLK in matte black. That is the usual repair on a high traffic center hung opening, since the bottom carries the door weight and wears first. Match the finish of the top pivot already on the door, and confirm the existing floor prep is a 7256 pattern before you order the bottom alone rather than the full set.
11) Does the floor need special prep for the Ives 7256 bottom pivot?
The 7256 uses a bottom base mount, so the floor takes the load and you drill and route the door and frame to the Ives template that comes with the set. Mark the top and bottom locations off that template before cutting anything, install the bottom pivot with its base mount first, then set the top pivot. If your install is a hospital-style opening going into masonry, ZenSupply carries the Hager 511 mortise hospital pivot set for masonry floor installation and the Hager 512 surface hospital pivot set for masonry floor applications, both heavy duty.
12) Can a hospital pivot set be substituted for an Ives 7256 center hung pivot set?
They solve different openings. The Hager 510, 511 and 512 are hospital pivot sets, heavy duty, and the 510 and 512 are double acting Camtrol units selected by floor construction, wood floors for the 510 and masonry for the 512, with the 511 mortised into a masonry floor. The Ives 7256 is a center hung top and bottom pivot set for a commercial standard door up to 600 lbs, with 3/16 inch vertical adjustment and a positive locking mechanism. The 7256 is also the one carrying a 20 minute fire rating, while the three Hager hospital sets are listed with a fire rating of No, which rules them out where the opening is rated.
13) Is the Hager 500 center hung pivot the same part as the Ives 7256?
They are both center hung pivots but they are not the same item. The Hager 500 is a full mortise center hung pivot with a rack and pinion mechanism, standard weight brass construction, standard duty, listed for doors 1-3/8 inch to 1-3/4 inch thick. The Ives 7256 is a top and bottom center hung set at a heavy duty level for commercial standard doors up to 600 lbs, brass construction, non-handed, certified to ANSI/BHMA A156.4 C07032 and fire rated for 20 minutes. If a submittal calls out one by model, the rack and pinion mechanism and the duty level are what separate them.
14) I only need to replace the top pivot on a center hung door. What are the choices?
The Ives 7256 top pivot is sold on its own, for example the 7256 TOP 643E/716 in aged bronze, and it uses the tilt-on bearing and bearing pin design that pairs with the 7256 bottom. The other top-only center hung part is the Dorma 8062 walking beam center hung complete top pivot, which ships as a complete top pivot with a cover plate and is heavy duty. The 8062 is a walking beam arrangement rather than a tilt-on bearing pin, so confirm the existing frame prep before treating one as a drop-in for the other.
15) The bottom pivot has to land in a concrete floor. Which pivot sets are made for masonry?
The Ives 7256 uses a bottom base mount that distributes the door weight through the floor and building structure, with floor to door clearance adjustable from 3/16 inch to 3/4 inch. Where the floor construction drives the selection, Hager publishes the split directly: the 511 is a mortise hospital pivot set for masonry floor installation, the 512 is a Camtrol double acting surface hospital pivot set for masonry floor applications, and the 510 is a Camtrol double acting hospital pivot set for wood floors. All three are heavy duty. Mortise versus surface at the floor is the detail to settle before ordering, since it decides how much the slab has to be cut.
16) What center hung pivot works for a lighter wood or hollow metal door that does not need 600 pound capacity?
The Dormakaba CP440 is the lighter capacity center hung set in this group: a double acting center hung pivot set for wood or steel doors up to 440 lb at a standard duty level. The Hager 500 full mortise center hung pivot is likewise standard duty, in standard weight brass, for doors 1-3/8 inch to 1-3/4 inch thick. The Ives 7256 sits above both at heavy duty for doors up to 600 lbs, and it is the one with a 20 minute fire rating, so size the pivot to the actual door weight and to whether the opening is rated.
17) Will an Ives 7256 pivot corrode in a wash-down or high humidity area?
All exposed parts on the 7256 are brass, which is what Ives specifies for corrosion resistance in commercial environments. The catalog data lists brass as the substrate for the set. That makes it a reasonable choice in humid interiors and heavy traffic entries, and it is the same construction the Hager 500 center hung pivot uses, though the Hager is standard weight and standard duty rather than heavy duty.
18) Does the Ives 7256 pivot need power or wiring run to the opening?
No power, no wiring, no prep for it. The 7256 is a purely mechanical pivot set, with a tilt-on bearing and bearing pin arrangement running on precision bearings. Everything it does, including the clearance adjustment and its positive lock, is set by hand at install.
How fast can I get the Ives 7256 SET US26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 Ives 7256 SET US26D come with a warranty?
Absolutely. The Ives 7256 SET US26D 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 Ives 7256 SET US26D?
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