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Surface Preparation

JS-131 Gas Walk Behind | Joint Clean-Out Saw

Part #SX77131

$4,774.25

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JS-131 Gas Walk Behind | Joint Clean-Out Saw

Product Description

The JS-131 is a Joint Clean-out Saw/Mill designed to clean-out existing control joints to prepare for new joint fill application or remove failing or deteriorated existing joint fill material. This machine can be used to remove polyurea, epoxy, and polyurethane joint fill materials.  The JS-131 can utilize a variety of blade thicknesses, common sizes include,  .095, .125, .187, .250, .375, .500 in width. The JS-131 can also be used with a 1.5″ stack of blades for milling projects.

Technical Data

Weight 200 lbs
Power Source

Honda GX390 11.7 HP

Fuel Type

Gasoline

RPM

5,850

Max Depth of Cut

3"

Blade Width

.095", .110", .125", .187", .250", .375", .500"

Max Blade Width

Single Blade: .500" Multiple Blades: 1.5"

Blade Diameter

8", 10"

Blade Arbor Size

1" with Drive Pin Hole

Dust Collector Size

350+ cfm

Features

  • Gas walk-behind mill used for joint clean-out, concrete sawing, and trench cutting
  • Up cut blade rotation with vacuum port on the front of the blade guard allows for easy and efficient dust collection
  • This machine is designed to mill out dirt and debris from existing control joints prior to filling, or to remove existing joint fill material in need of replacement
  • A dust collector with a minimum of 350 CFM is recommended for use with this machine when cleaning out open control joints. (Joint fill removal or concrete cutting may be acceptable with 225 CFM)
  • Production speed is greatly dependent upon job site conditions
  • Made in the U.S.A.

Videos

video
JS-131 in action

Manuals & Documents

Questions & Answers

What is the JS-131 best used for?

Cleaning out control joints before filling, removing failed joint filler (epoxy, polyurea, or polyurethane), and light concrete cutting/trenching. It’s especially strong outdoors or in areas where propane or electric power isn’t ideal.

How deep and wide can it cut?

Max depth: 3″ with a 10″ blade
Single blade widths: .095″, .110″, .125″, .187″, .250″, .375″, .500″
Stacked blades: up to 1.5″ total width

What kind of dust collection do I need?

We recommend a minimum of 350 CFM for open joint clean-out. 225 CFM can work in certain conditions, but dust control effectiveness will be reduced.

What is the rate of production?

Depends on the jobsite conditions, open joint cleanout (new construction, no existing filler. not over cutting joints) 50-80 ft per minute, removing approximately 1/2" depth x .250 wide of epoxy joint filler 6-12 ft per minute, removing polyurea joint filler can only be measured on the jobsite.

How long do the blades last?

Average is 2,000–3,000 linear feet. Actual life varies a lot depending on the concrete hardness, joint condition, and whether you’re cutting clean joints or removing old filler.
Use the DCB 8" or 10" JS Blades for cleaning new joints
Use the APB 8" or 10" JS Tigertooth Blades for Removal of old fillers

Is this machine good for indoor use?

It’s gas-powered (Honda GX390), so it’s primarily intended for outdoor or well-ventilated spaces. For indoor warehouse work, the propane JS-160 is usually the better choice.

Does it come with a blade?

No. Blades are sold separately so you can choose the exact width and bond for the job.

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