Calibre Door Closers Adjustabl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$172.34
Calibre Door Closers Adjustable Overhead Concealed (OHC) Closer, 105° Back Stop, Hold Open, Adjustable Spring Tension, Dual Purpose Bottom Pivot, Calibre CA3300 Series

Calibre Door Closers Adjustable Overhead Concealed (OHC) Closer, 105° Back Stop, Hold Open, Adjustable Spring Tension, Dual Purpose Bottom Pivot, Calibre CA3300 Series

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Model: CA3310-S-DP

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

$172.34
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The Calibre CA3300 Series Overhead Concealed Closer is a premium solution for glass and aluminum storefront doors, offering ADA-compliant adjustable spring tension and universal application. Designed for center or offset hung doors, this closer features a 105° back stop with hold-open functionality, making it ideal for commercial and institutional buildings with high traffic flow and accessibility requirements.

This mechanical concealed closer includes a dual-speed control for independent closing and latching adjustments, a positive cam centering mechanism for secure alignment, and a CA3010-DP dual-purpose bottom pivot set for flexible floor or threshold installation. Compatible with side or end loading arms, the closer is built to operate reliably in all climates and meets fire safety certifications including UL10C and UBC 7.2.

  • Function: 105° Back Stop with Hold Open (other back stop and hold-open configurations available)

  • Closer Type: Mechanical, Concealed Overhead Closer

  • Series: CA3300 Series (Includes 3300-20 Extended Spindle Models)

  • Spring Tension: Adjustable, multi-size (ADA compliant)

  • Handing: Non-handed (LH or RH)

  • Mounting: Center Hung, Side Load (fits headers as small as 1-3/4" x 4")

  • Application:

    • Center Hung Doors: Includes CA3010-DP dual-purpose bottom pivot set (floor or threshold mount)

    • Offset Hung Doors: Optional 'JO' or 'VO' offset arms (must be specified separately)

  • Top Arms Available:

    • Side Loading: 'S' (standard)

    • End Loading (optional): 'A', 'K', 'PT'

  • Bottom Pivot: CA3010-DP (included); CA3010-G and CA3010-GE (optional)

  • Anchor Set: CA3010-FS (included)

  • Speed Control: Independent closing and latching speed valves

  • Certifications:

    • UL Listed (UL10C Positive Pressure)

    • Complies with UBC 7.2 (1997), BS476 Fire Safety

  • Opening Angle: 105°

  • Construction: Positive cam centering, hydraulic fluid for all climates

  • Alternate Model Codes: 139169, 310, 310S, 3310-S-DP, 3310SDP, CA3310-S-DP, CA3310SDP, CDC3310-S-DP

CA3300 Series Parts and Accessories:

 

 

CA3300-B Unit Body Only (Specify: Spring Tension, Type & Function)
CA3010-S "S" Type Side Loading Top Arm Assembly (1/2" Depth Top Rail)
CA3010-A "A" Type End Loading Top Arm Assembly (1" Depth Top Rail)
CA3010-K "K" Type End Loading Top Arm Assembly (5/8" Depth Top Rail)
CA3010-PT "PT" Type End Loading Top Arm Assembly (7/8" Depth Top Rail)
CA3010-JO "JO" Type Offset Top Arm Assembly (Mortised Type, Cut down into 9/16" Depth Top Rail)
CA3020-VO "VO" Type Offset Top Arm Assembly (Surface Type, Requires 7/8" Depth Top Rail)
CA3010-FS Anchor Set (Standard - for Snap together Header)
CA3010-FK Anchor Set (Optional - for Full tube Cut Away Header)
CA3010-F Corner Anchor Clip ("F" Clip Only)
CA3010-DP Adjustable Dual Purpose Bottom Pivot Set (Standard)
CA3010-G Adjustable Floor Mount Bottom Pivot Set (Optional)
CA3010-GE Adjustable Threshold Mount Bottom Pivot Set (Optional)

 

Manufacturer Resources

Product Specs

Subcategory:
Overhead Concealed Door Closers
Product Group:
Concealed Door Closers
Product Subgroup:
Overhead Concealed Door Closers
Product Type:
Mechanical Closers
Series:
CA3300 Series (Includes 3300-20 Extended Spindle Models)
Closer Type:
Mechanical, Concealed Overhead Closer
Bottom Pivot:
CA3010-DP (included); CA3010-G and CA3010-GE (optional)
Anchor Set:
CA3010-FS (included)
Opening Angle:
105°
Door Hand Direction:
Non-handed (LH or RH)
Product Category:
Doors Closers
Department:
Door Hardware

Calibre Door Closers CA3310-S-DP – Frequently Asked Questions

1) Will the Calibre CA3300 concealed closer fit in my storefront header?
The CA3300 mounts center hung with the standard 'S' side loading top arm and fits headers as small as 1-3/4 x 4 inches, which covers most aluminum storefront tube. Measure the header cavity before you order, because a concealed overhead closer has to live inside that tube; if your header is a full tube cut-away rather than a snap-together, order the CA3010-FK anchor set instead of the CA3010-FS that ships with the closer.
2) Do I need to order left hand or right hand for a Calibre CA3310-S-DP closer?
No handing to specify. The CA3300 Series closer is non-handed and works left hand or right hand out of the same box, so one part number covers both leaves of a pair or a mixed set of openings in a building.
3) Is the bottom pivot included with the Calibre CA3300 overhead concealed closer, or do I buy it separately?
The CA3010-DP adjustable dual purpose bottom pivot set ships with the closer, and it is the reason this package suits both floor and threshold conditions without a second decision at the order form. If you want a dedicated pivot instead, the CA3010-G is floor mount only and the CA3010-GE is threshold mount only. The CA3010-FS anchor set is also included.
4) Can I use this Calibre concealed closer on an offset hung door instead of center hung?
Yes, but the arm changes and the included pivot does not apply. As shipped the CA3310-S-DP is set up center hung with the 'S' side loading top arm and the dual purpose bottom pivot. For offset hung doors you specify an offset top arm separately: the CA3010-JO mortises down into a 9/16 inch depth top rail, and the CA3020-VO is a surface type needing a 7/8 inch depth top rail.
5) Which top arm do I need for my door's top rail depth on a Calibre CA3300 closer?
Pick the arm off the top rail depth. The 'S' side loading arm (CA3010-S) is standard and suits a 1/2 inch depth top rail. End loading options are the CA3010-K at 5/8 inch, the CA3010-PT at 7/8 inch, and the CA3010-A at 1 inch. Measure the rail on the actual door leaf before you commit, since the arm is what ties the closer spindle to the door.
6) Is the Calibre CA3300 concealed closer ADA compliant and can I adjust the opening force?
Spring tension is adjustable and multi-size on the CA3300, and the closer is ADA compliant, so an installer can dial the opening force down on a public entrance and back up on a windy exterior opening without swapping to a different spring size closer. Closing and latching speeds adjust independently through separate valves, which is what lets you slow the swing while still getting the door to latch.
7) Is the Calibre CA3300 overhead concealed closer fire rated for a fire door assembly?
It is UL Listed to UL10C positive pressure and complies with UBC 7.2 (1997) and BS476 fire safety. That is the listing an institutional or MRO spec normally calls for on a labeled opening, and it is the same closer used on non-rated storefront, so a facility can standardize on one part across rated and non-rated entrances.
8) Does the Calibre CA3300 closer hold the door open, and at what angle does it stop?
It stops at 105 degrees and holds open there. That is a back stop built into the closer, so the door will not swing past 105 degrees into an adjacent wall or a return, and it parks open for deliveries or moving furniture. Other back stop and hold open configurations are made in the series if 105 degrees is not the angle your opening needs.
9) Should I use an overhead concealed closer or a floor closer on an aluminum storefront door?
An overhead concealed closer like the CA3300 lives inside the head tube and pairs with a bottom pivot, so there is no coring of the slab and no floor pan to waterproof. That makes it the practical choice on an existing storefront or a retrofit where you cannot cut concrete. A floor closer carries the door weight at the sill and is what you go to on heavy all-glass doors. If you want the closer out of sight but the header is too shallow for a concealed unit, a surface mounted closer on the door face is the fallback.
10) I already have a Calibre 3310-S-DP or CDC3310-S-DP in my building. Is this the same closer?
Same unit. The CA3310-S-DP is also written as 3310-S-DP, 3310SDP, CA3310SDP, CDC3310-S-DP, 310 and 310S depending on whose paperwork you are reading. If you are matching what is already in your headers, that is the part number family to look for.
11) Can I buy just the Calibre CA3300 closer body if my arm and pivot are still good?
Yes, the CA3300-B is the unit body only, and you specify spring tension, type and function when you order it. That is the usual move when a closer fails but the header anchors, top arm and bottom pivot in the opening are intact. Individual arms and pivots are also sold on their own, including the CA3010-F corner anchor clip if only the clip is damaged.
12) Will the Calibre CA3300 work in an unheated garage or an exterior door in cold weather?
The CA3300 uses hydraulic fluid rated for all climates, so the closing speed will not go sluggish in winter and race in summer the way a temperature sensitive closer does. Positive cam centering keeps the door aligned in the closed position, which matters on an exterior leaf where a misaligned door lets weather through.
How fast can I get the Calibre Door Closers CA3310-S-DP 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 Calibre Door Closers CA3310-S-DP come with a warranty?
Absolutely. The Calibre Door Closers CA3310-S-DP 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 Calibre Door Closers CA3310-S-DP?
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
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