BEST SL6000 Series Grade 1 Sur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$373.00
$327.03
BEST SL6000 Series Grade 1 Surface Mounted Door Closer with Adjustable Spring Sizes

BEST SL6000 Series Grade 1 Surface Mounted Door Closer with Adjustable Spring Sizes

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Model: BEST-SL6014 ARP 600
$373.00
$327.03
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$373.00
$327.03
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BEST SL6000 Series Grade 1 Surface Mounted Door Closer with Adjustable Spring Sizes

Professional Hydraulic Door Control Solution

The BEST SL6000 Series surface door closer delivers Grade 1 certified performance with adjustable spring sizes 1-4 and 3-6 for versatile commercial applications. Constructed with DIN 226 aluminum alloys for maximum protection against metal fatigue and abrasion, this hydraulic closer features adjustable backcheck standard and meets ANSI/BHMA A156.4 Grade 1 certification. The compact design accommodates 1-3/4" thick doors and is backed by an industry-leading 30-year warranty.

Professional Features & Benefits

  • Adjustable Spring Sizing: Available with spring sizes 1-4 and 3-6 to accommodate varying door weights and application requirements for optimal performance.
  • Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 certified with UL and CUL listings for demanding commercial applications and code compliance.
  • Heavy-Duty Construction: DIN 226 aluminum alloys provide maximum protection against metal fatigue and abrasion for long-term reliability in high-traffic environments.
  • Adjustable Backcheck Standard: Provides cushioning when doors are abusively opened, protecting door and frame while controlling abrupt opening movements.
  • Barrier-Free Compliance: Meets 5 lb interior barrier-free applications (SL6014 model) and ADA requirements for accessible door operation.
  • Thermostatic Valve Control: Two noncritical adjusting valves (sweep and latch) with thermostatic properties provide consistent closing speeds under wide temperature variations.
  • Optional Delayed Action: Available delayed action valve delays door closing from maximum opening with adjustable delay time for enhanced accessibility.
  • Manufacturer Warranty: Industry-leading 30-year warranty for added confidence and long-term protection in commercial installations.

Technical Specifications

  • Commercial/Residential: Commercial
  • Delay Function: Yes
  • Department: Door Hardware
  • Duty Level: Light Duty
  • Fasteners: Self-Drilling, Self-Tapping, Thru Bolts 1-3/4" Door With Machine Screws
  • Function Description: Electrically Locked
  • Grade: Grade 1
  • Product Category: Door Controls
  • Product Group: Door Controls
  • Product Subgroup: Door Closers - Surface Mounted
  • Product Type: Surface Mounted Door Closers
  • Series: SL6000 Series
  • Subcategory: Surface Mounted

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness compatibility with 1-3/4" doors and mounting surface adequacy.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces, or utilize SL640C mounting bracket for 9-1/16" template hole pattern installations.
  3. Prepare door and frame by drilling required holes using provided self-drilling and self-tapping fasteners or machine screws as specified for the application.
  4. Install all mounting hardware and secure the closer to door and frame per manufacturer torque specifications using appropriate fastener type for door construction.
  5. Adjust spring power using Allen head adjustment and configure sweep and latch valve settings for desired closing speed and backcheck operation.
  6. Test closer operation to verify proper function including backcheck cushioning, closing speed consistency, and delayed action timing if equipped. Refer to manufacturer documentation for complete installation details and valve adjustment procedures.

Professional Applications

  • Educational Facilities and Universities
  • Healthcare Institutions and Medical Centers
  • Government Offices and Municipal Buildings
  • Transportation Facilities and Airports
  • Commercial Office Buildings
  • High-Traffic Public Buildings
  • Barrier-Free Accessibility Applications

Delayed Action Functionality

Optional delayed action valve provides adjustable delay timing to delay door closing from maximum opening position. This feature allows extra time for passage through the opening, enhancing accessibility compliance while maintaining automatic door closing for security and HVAC efficiency.

Why Choose BEST Quality?

BEST SL6000 Series door closers deliver professional-grade reliability with DIN 226 aluminum alloy construction and Grade 1 certification for demanding commercial applications. The industry-leading 30-year warranty and all-weather hydraulic fluid formulation ensure minimal maintenance requirements and consistent performance. Engineered for high-traffic environments where dependable door control, safety protection, and barrier-free compliance are essential.

Manufacturer Resources

BEST Closers Catalog

Product Specs

Series:
SL6000 Series
Fasteners:
Self-Drilling, Self-Tapping, Thru Bolts 1-3/4" Door With Machine Screws
Product Group:
Door Controls
Product Subgroup:
Door Closers - Surface Mounted
Product Type:
Surface Mounted Door Closers
Subcategory:
Surface Mounted
Commercial/Residential:
Commercial
Function Description:
Electrically Locked
Duty Level:
Light Duty
Grade:
Grade 1
Delay Function:
Yes
Product Category:
Door Controls
Department:
Door Hardware

BEST BEST-SL6014 ARP 600 – Frequently Asked Questions

1) Will the BEST SL6000 door closer work on a 1-3/4 inch commercial door?
The SL6000 Series surface closer is built for 1-3/4 inch doors, and the fastener pack reflects that: self-drilling and self-tapping screws, plus thru bolts with machine screws for a 1-3/4 inch door. It is a commercial closer, not a residential one, so plan on a hollow metal or solid core opening rather than a light interior slab.
2) Which spring size do I order on a BEST SL6000 closer for an ADA barrier-free opening?
Order the SL6000 with the adjustable size 1-4 spring. That is the range BEST lists for meeting barrier-free ADA requirements, and the SL6014 model meets 5 lb interior barrier-free applications. The adjustable size 3-6 spring is the one to pick for heavier or exterior doors where you need more closing power than an interior accessible opening allows.
3) Is the BEST SL6000 closer ANSI Grade 1 and UL listed?
Grade 1 under ANSI/BHMA A156.4, with UL and cUL listings. That is the certification most institutional and government specs call out for a surface closer, so it will satisfy a Grade 1 line item on a drawing.
4) I have a pair of double egress doors. Does BEST make an SL6000 arm for that?
Yes, the TDE track arm (double egress, pull side frame mounted) and the TDEH version with hold open cover that condition. Two things to know before you order: both are size 3-6 only, so the barrier-free 1-4 spring is not an option on a double egress pair, and you have to specify handing, left or right, for each leaf.
5) My door opens into a corridor and the frame reveal is about 5 inches. Which SL6000 arm do I need?
For a top jamb mount with a deep reveal, the SL6000 offers the ARJ round form arm and the FHJ friction hold open arm, both rated for a 4 to 8 inch reveal. If you need a stop built into the arm at that condition, the heavy duty top jamb arms ISJ, ISJH, SISJ and SISJH cover 3-1/2 to 6-1/2 inch reveals instead. Measure the reveal from the face of the door to the frame stop face before you pick.
6) Which door closer should I use for a heavier or higher-traffic door than a light duty SL6000 handles?
The SL6000 is rated light duty. When the door is heavier or the traffic is harder, step to a heavy duty Grade 1 body. The Sargent 1431 Powerglide is heavy duty Grade 1 with adjustable spring power, and the Sargent 281 Powerglide is heavy duty Grade 1 in cast iron. The Falcon SC71A is a heavy duty Grade 1 surface mount closer, and the Dormakaba 8916-JT is heavy duty Grade 1 with adjustable size 1 to 6 on a jamb track, frame face mounted on the pull side. The LCN 1460T is heavy duty Grade 1 in a powder coat finish. All remain surface mounted, so the mounting approach is unchanged from the SL6000.
7) What is the closest Grade 1 surface closer to a BEST SL6000 with adjustable spring size 1-4?
The Arrow DCN314 is the nearest match on the defining points: it is a Grade 1 surface door closer with adjustable spring size 1 to 4 and a regular/parallel arm tri-pack, and it is rated light duty, the same duty level the SL6000 carries. The Arrow DC314 in the DC300 series is the same idea with the cover included, also Grade 1 light duty. If the opening needs the wider spring range instead, the Arrow DCN325 covers adjustable size 1 to 6 in the same Grade 1 surface family. All three are surface mounted like the SL6000, so door and frame prep is the same class of work.
8) I need a barrier-free ADA closer instead of specifying the SL6000 size 1-4. What else does that?
The SL6000 offers an adjustable size 1-4 spring to meet barrier-free ADA requirements. Other closers built to the same brief include the Cal-Royal 500S, a Grade 1 barrier free closer with adjustable back-check, and the Cal-Royal N900PBF in the 900 series, a barrier free Grade 1 hydraulic surface closer. The Calibre CA4001 is a Grade 1 adjustable spring tension ADA hydraulic closer, and the Calibre CA9901 is a Grade 1 ADA surface mount closer with a tri-pack arm in adjustable size 2 to 5. The Imperial USA TC4300 is a heavy duty size 1-6 ADA closer if the door also needs more spring power than a size 1-4 range provides.
9) For a door needing spring size 3-6 like the SL6000 heavy range, what other closers cover size 6?
The SL6000 offers an adjustable size 3-6 spring alongside the 1-4 range. Peers whose adjustment reaches size 6 include the Arrow DCN325, a Grade 1 surface closer with adjustable spring size 1 to 6 on a regular/parallel tri-pack; the Accentra 2701, an architectural closer with tri-pack mounting and adjustable spring sizes 1 to 6; the Norton Rixson 8501A, a Grade 1 tri-mount surface closer with adjustable size 1 to 6 spring; the Dormakaba 8916-JT at adjustable size 1 to 6; and the LCN 1450, a medium duty closer with spring sizes 1 to 6. A 1-to-6 body will also cover the lighter settings, where the SL6000 splits the range across two spring choices.
10) Which of the closers near the SL6000 are not Grade 1, and what does that change?
The SL6000 is ANSI/BHMA Grade 1. Two nearby closers sit at a different grade: the Cal-Royal 400 series is a Grade 2 commercial hydraulic door closer, and the Falcon SC91A is a Grade 3 light duty cast aluminum surface mount closer. If a drawing or a facility standard calls out Grade 1, those two will not answer the callout even though they mount to the door in the same surface fashion. Grade 1 peers to hold that spec include the Falcon SC81A, medium duty Grade 1, and the Dexter DCH1000, a Grade 1 tri-mount surface closer with a full cover.
11) What is the equivalent of an SL6000 with a JT jamb track pull side frame mounted arm?
The SL6000 offers the JT jamb track arm and the JTH jamb track with hold open, both pull side frame mounted, plus the T track arm pull side door mounted. The Dormakaba 8916-JT is the direct counterpart: a Grade 1 jamb track closer, frame face mounting on the pull side, adjustable size 1 to 6, heavy duty, with a flat non-hold open arm. The Corbin Russwin DC5230 is a Grade 1 surface closer with a slide track arm as standard, pull side mounting, for 1-3/4 inch doors, which is a track configuration on the same side of the opening.
12) What should I put on an aluminum storefront door instead of a BEST SL6000?
The Norton Rixson 1600 series aluminum storefront door closer is built for that opening specifically, with tri-style mounting, heavy duty and Grade 1. The Norton Rixson 1601P is a Grade 1 tri-mount surface closer with a 180 degree swing at medium duty, useful where the door needs to open wide. For lighter commercial storefront work, the Norton Rixson 160 series is a light commercial surface closer with an adjustable spring, Grade 1 light duty, matching the light duty rating the SL6000 carries.
13) Should I use a track arm or a parallel arm closer on my door?
Track arm versus a projecting arm is mostly about clearance and abuse. The SL6000 track options (T and TH door mounted, JT and JTH frame mounted, PT and PTH push side soffit, FT and FTH push side transom) keep the arm tight to the door, which is what you want in a corridor or where a swinging arm gets grabbed. The parallel arms (SPA, SPAT, DS, DST, SDS, SDST) project out but give you a built-in stop, including a compression stop on the SDS and SDST, so the arm takes the abuse instead of the wall or an overhead stop. If your opening has no wall stop, go parallel with a stop.
14) Can I hold the door open with a BEST SL6000 closer?
Several ways, and they behave differently. FH, FHJ and FHP are friction hold open arms, where drag in the arm holds the leaf. SPAT is a parallel arm with a thumb-turn hold open the user sets deliberately. The DST, ISH, SDST, SISH, SISJH and the track versions TH, JTH, PTH, FTH and TDEH combine hold open with a stop or track. Note this is mechanical hold open, not an electrified hold open release, so on a fire rated opening tied to the alarm it is the wrong choice.
15) What is delayed action on a door closer and do I need it on the SL6000?
Delayed action is an extra valve that holds the door near full open for an adjustable period before the sweep begins, giving someone in a wheelchair or pushing a cart time to clear the opening. On the SL6000 it is an ordering option you select yes or no, not standard. Specify it on healthcare, school and accessible entrances; skip it on doors where a long open dwell hurts HVAC or security.
16) Will the SL6000 closing speed change when the weather turns cold?
Two noncritical adjusting valves, sweep and latch, carry thermostatic properties, and the hydraulic fluid is an all-weather formulation. That is what keeps an exterior door from slamming in July and creeping in January. Adjustable backcheck comes standard as well, cushioning the door before it can be thrown into the wall.
17) What is the SL640C bracket used for on a BEST closer?
The SL640C mounting bracket lets the SL6000 pick up a 9-1/16 inch template hole pattern. That matters on a retrofit: if the door and frame are already drilled to that pattern from the closer you are pulling off, the bracket saves you from drilling and patching a new prep.
18) What is the closest equivalent to a BEST SL6000 from another brand?
For a Grade 1 surface closer on a 1-3/4 inch door, the Corbin Russwin DC3200 with a regular arm and the DC6200 with a double lever regular arm are both Grade 1 and listed for 1-3/4 inch doors. If the spec calls for a slide track like the SL6000 T or JT arms, the Corbin Russwin DC5230 is a Grade 1 slide track arm closer, pull side mounted. Norton Rixson 8501A is another Grade 1 tri-mount with an adjustable size 1-6 spring, which lines up with the SL6000 size 3-6 option.
19) I need a cheaper barrier-free closer than the BEST SL6000 for an interior office door. What else works?
For a light interior accessible opening, the Cal-Royal 500S is a Grade 1 barrier-free closer with adjustable backcheck, and the Cal-Royal N900PBF is a Grade 1 barrier-free hydraulic surface closer. Calibre CA4001 is a Grade 1 with adjustable spring tension for ADA, and Calibre CA8001P is a Grade 1 parallel arm size 1 ADA unit. Any of those covers a standard interior door; step up to the SL6000 when you need its arm selection or a specific ANSI/BHMA A156.4 Grade 1 line item met with a size 1-4 or 3-6 adjustable spring.
20) Can one BEST SL6000 closer cover regular, top jamb and parallel mounting like a tri-pack?
Partly. The SL6000 offers tri-pack arms, AO8P secured round form and FHP friction hold open, which ship with the brackets for more than one mounting. Most of the other arms are mount-specific: IS and ISH are regular or top jamb, SPA and DS are parallel, T and JT are track. If you are stocking one closer to fit whatever opening comes up, order a tri-pack arm. If you already know the mounting, order the arm for it. LA, less standard arm, is there for when the arm is being supplied separately.
21) What is a simpler alternative to the SL6000 when the door only needs a basic closer and not 31 arm options?
The SL6000 carries a long arm list, from the ARP standard arm through track arms, heavy duty parallel arms with stop, and double egress track arms. When the opening only needs a plain surface closer, a single-configuration model is less to specify. The Accentra 1900 series is a traditional surface mounted door closer, and the Deltana DC10, DC40, DC50 and DC70 are each a single door closer model rather than an arm-by-arm build. The Corbin Russwin DC3200 is a Grade 1 closer supplied with a regular arm and surface mounting for 1-3/4 inch doors, which is the same door thickness the SL6000 is built around.
22) The SL6000 delayed action is an option. Which closers come as a delayed action model?
On the SL6000 delayed action is selected when ordering, and the closer carries a delay function. If you would rather buy the delay as part of the model, the Orca Hardware BHDC1958DA/PA is a delayed action door closer with a regular arm and parallel bracket, tri-packed non-hold open, for 1-3/4 inch doors. The Orca BHDC2011DA/PA is the same delayed action arrangement in the BHDC2011 series, also a regular arm with parallel bracket for 1-3/4 inch doors. Both share the 1-3/4 inch door thickness the SL6000 is prepped for.
23) I want a hold open closer without configuring an SL6000 arm code. What ships as a hold open model?
The SL6000 reaches hold open through the arm you pick, such as the TH track arm with hold open or the DST heavy duty parallel arm with hold open and stop. Closers that are simply sold as hold open include the Accentra 51 series, a tri-packed hold open arm closer in size 1 to 6, and the Orca BHDC1958HO/PA, a hold open closer with a parallel bracket and tri-packed hold open arm for 1-3/4 inch doors. The Stanley Security A45-501HL comes with a long hold open arm as standard, top jamb mounted, which fixes the mounting position rather than leaving it open.
24) Does a drop plate or a pivot substitute for a surface door closer like the SL6000?
No. The SL6000 is a surface mounted hydraulic door closer. The Arrow DCN500DP is a parallel drop plate for the DCN500, a mounting plate that adapts a closer to the opening rather than a closer itself. The Stanley 327 heavy wardrobe pivot, for 1-3/8 inch or 1-3/4 inch doors up to 150 lbs, and the Stanley 341 wardrobe pivot for flush recessed or overlay doors, for 1-1/8 inch to 1-3/8 inch doors, are hanging hardware that lets a door swing, with no hydraulic closing control. The Stanley steel machine screws for architectural hinges are fasteners. None of these will close a door, so if the opening needs controlled closing you still need a closer body.
25) Which closers use cast iron or cast aluminum instead of the SL6000 DIN 226 aluminum body?
The SL6000 body is built from DIN 226 aluminum alloys. If the specification calls for a different material, the LCN 1261 is a surface mounted closer with adjustable spring sizes 1 to 5 in cast iron construction, and the Sargent 281 Powerglide is a heavy duty cast iron surface closer. On the aluminum side, the LCN 1450 is a medium duty closer in cast aluminum with spring sizes 1 to 6, the Falcon SC81A and SC61A are cast aluminum surface mount closers, and the Sargent 1331 is a Grade 1 closer with a universal aluminum body.
26) Is a medium duty closer like the Dormakaba 7414 an acceptable stand-in for a light duty SL6000?
The Dormakaba 7414 is a Grade 1 medium duty closer in size 1 to 4, and the Dormakaba 7303 is a Grade 1 medium duty surface mounted standard duty closer in a painted finish. Both hold Grade 1 like the SL6000, which is rated light duty, and the 7414 spans the same size 1 to 4 range as the SL6000 barrier-free spring. The difference is duty level rather than grade, so the substitution turns on how the door is used, not on whether the closer meets a Grade 1 callout. The Design Hardware 116 and 416 series are heavy duty tri-packed non-hold open closers if the swap needs to go further up.
27) Which closers come tri-packed so one box covers regular, parallel and top jamb mounting?
The SL6000 has tri-pack arms in the range, including the AO8P secured round form arm tri-pack and the FHP friction hold open arm tri-pack, and separately offers regular, top jamb and parallel arm codes. Closers sold tri-packed include the Accentra 1101BF with adjustable spring sizes 1 to 4 and tri-pack mounting, the Accentra 2701 with tri-pack mounting and sizes 1 to 6, the Arrow DCN314 and DCN325 with a regular/parallel arm tri-pack, and the Dormakaba 8616 with a flat arm non-hold open tri-pack at heavy duty Grade 1. The Dexter DCH4000 is tri-mount for regular, parallel or top jamb, Grade 1. Tri-packing is what lets one part number cover openings that turn out to need different mounting on site.
28) What finishes does the BEST SL6000 door closer come in?
Seven: 689 aluminum painted, 690 statuary dark bronze, 695 dark bronze painted, 691 light bronze, 693 black, 696 gold, and 600 primed for painting. The 600 is the one to order when a facility standard calls for a custom color match on existing openings, since it ships ready to take paint.
29) Does the BEST SL6000 come with a cover, and can I get tamper resistant screws?
Cover and security fasteners are both selectable options on the SL6000. Add the slim plastic cover if you want the body concealed, and add Torx security screws where the closer sits in a school, detention, transit or other opening where people pick at hardware. In a high-abuse building, order both.
30) What is the SL6000 closer body made of and will it hold up in a high traffic building?
The body uses DIN 226 aluminum alloys, chosen against metal fatigue and abrasion. Paired with Grade 1 certification and the all-weather fluid, it is specified for schools, healthcare, government offices, airports and other high-traffic public buildings. It is a light duty rating within Grade 1, so on doors that take real abuse pair it with a stop arm rather than relying on backcheck alone.
31) The SL6000 lets me add a slim plastic cover. Which closers come with a cover or without one as built?
On the SL6000 the slim plastic cover is added at order time. Among the alternatives, the Dexter DCH1000 is a Grade 1 tri-mount surface closer supplied with a full cover, and the Design Hardware 316 series is a heavy duty closer sold with cover. Going the other way, the Arrow DCN314 and DCN325 are Grade 1 surface closers supplied less cover, with a regular/parallel arm tri-pack. That matters where a closer sits in a public corridor and the cover is part of the appearance the facility expects.
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Does the BEST BEST-SL6014 ARP 600 come with a warranty?
Absolutely. The BEST BEST-SL6014 ARP 600 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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