Lockey TB400

Hydraulic Commercial Gate Closer (175lb Max)

Reviews (4) | Customer Questions (1)


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  • Turtle Back Hydraulic Gate Closer
  • Compatible to Kant Slam gate closers and with updated componentry for better results
  • Easy, Gentle, Smooth Self-Closing of Gates
  • Simple, DIY Fitting
  • Does Not Slam Gates, Unlike Normal Closing Springs
  • Use On Timber, Metal, Vinyl, Any Material Small or Large Gates Under 175lbs. and 64″ or Less In Width (72″ if gate is light-duty)
  • Not compatible with gates less than 40″ wide
  • TB400 can be mounted on chain link gates with the TB-LINX, sold separately
  • Hydraulically Controlled Regulated Closing
  • No Risk of Mal-adjustment or Tampering with Closing Speed Adjustment After Gate Closer Is Fitted
  • Fits Left and Right Swing Gates
  • Installs at Top, Bottom, Side, or Middle for Unmatched Mounting Versatility
  • 100° Degree Maximum Opening Angle; As with Most Gate Closers, a Mechanical Stop Is Recommended to Restrict the Gate Opening Angle
  • Ample Force Supplied at Latching Point
  • Opening Pressure:  Appx. 6-12 lbs.
  • Mounting Brackets, Fitting Bar, and Instructions All Included
  • Post Bracket — You can mount to post with as little as 1-1/4″ of flat surface. You can even mount the post bracket to a round post by using something similar to a muffler clamp
  • Weather Rated:  Gate Closer Won’t Fade, Rust, or Discolor
  • 1 Year manufacturer warranty:  To retain product warranty & restrict gate opening angle, a gate stop must be installed
Gate Closer36″ Gate48″ Gate60″ Gate

Constant Closing Pressure

Approximate WidthApproximate Weight
Added Opening Force
No Closer3/4 lb.1/2 lb.1/4 lb.0 lbs.
TB-2006 lbs.4 lbs.3 lbs.45 lbs.36-52 Inches50-125 lbs.
TB-40010 lbs.8 lbs.6 lbs.90 lbs.40-64 Inches75-175 lbs.
TB-60013 lbs.10 lbs.8 lbs.135 lbs.44-72 Inches150-250 lbs.
Added Force at 45° OpenAlso available:

TB-200 Stainless Steel
TB-400 Stainless Steel
TB-600 Stainless Steel

TB-2007 lbs.5 lbs.4.5 lbs.
TB-40013 lbs.9.5 lbs.8 lbs.
TB-60018.5 lbs.13.5 lbs.12 lbs.
GoKeyless is a trained and authorized Lockey® dealer. Sales, service, and support. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year. Firm, Quiet Hydraulic Action for Easy Closing of Pedestrian Gates Marry the TB400 to your gate and you'll never see it slam shut again.  Replicating many of the design and functionality features of the Kant Slam gate closer, the Turtle Back does it one better with improved seals and a higher performing cylinder.  With a pre-set closing speed delivering 8 seconds of controlled close, the TB400 Turtle Back automatic gate closer has emerged onto the market as an economical and reliable device to secure pedestrian gate arrangements up to 64" in width (72" if gate is light-duty), and 175lbs.  Hotel pool gates, parking lot access gates, beach access gates, office complex gates, resort gates, and barrier gates, highlight a few of the many places this gate closer can come in handy.  We also recommend the TB400 automatic gate closer for gates which lock by maglock or electric strike because of its steady and stable closing action.  Instead of having to peek around the corner, look out a window, or make a quick run to the gate to ensure it has remained closed, the TB 400 does it for you, letting you focus uninterrupted on what you were doing. Many of our clients use the TB400 in conjunction with the Lockey double sided 2835DC2210DC, 2830DC, 1150DC keyless gate locks, and Combi-Bolt CB2000. This powerful hardware combination provides secured, self-closing access control with the convenience of keyless entry.

1 1/2 (D) x 1 1/2 (H) x 31 (L) in.

Max. Gate Weight

175 lb.

Max. Gate Width

64 in.

Max. Opening Angle

100 degrees

Opening Pressure

Appx. 6 – 12 lbs

Gate Material

Chain Link, Steel, Vinyl, Wood



Outside Operating Temperature Range

15F to +122F




Stainless Steel, Black Painted






6 lbs


1 Year Manufacturer

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4.75 out of 5 stars

4 reviews

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What others are saying

  1. Matthew Budagher

    The product is just as they say. The customer service is really good. I had problems with the first closer they sent but in no time they sent me a new one that worked great.

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  2. Cyril Rice

    My product works so well I would like to let everyone know about it!! It works wonderfully! This is the real thing for anyone who has a need for a self closing gate, and mine is a half of a driveway gate, and it just does the job in a most excellent way.

    I am quite pleased – in fact I was kicking myself for spending $235 for this thing, but now I do not think of that cost it works so well.

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  3. Jim from the Missoulian, Missoula, MT

    The gate closures we ordered were perfect for what we needed!

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  4. Jose, Leadex Corporation, Miami, FL

    I want to thank GoKeyless for their amazing service. We finally found a solution to our outdoor gate closers! The people were very informative and really made everything simple. Backed by a timely shipping’ makes them perfect. I wish all the suppliers would work this way.

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Customer Questions & Answers

  1. A The open space is tough to determine as all gates vary in their distance and opening range. The gate opens in one fluid motion and does not open in sections. The speed and rate the gate closes can be adjusted as you desire.

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