Product Overview
The Mighty Mule MM-SL2000B Heavy Duty Slide Gate Opener is a chain-driven DC slide gate operator package used on compatible single slide gate installations. It is commonly selected for heavier residential driveway gates and similar access-control sites where a swing gate opener is not practical because of driveway grade, available swing space, property layout, or gate design. When the gate is level, properly tracked, and rolling freely, this operator is commonly listed for gates up to 30 ft in total length with up to a 20 ft opening and up to 1000 lb gate weight.
This type of slide operator is built around a 12V DC battery-backed platform. The battery and charging system are important because the operator depends on stored DC power for operation while the transformer or approved solar charging setup keeps the battery charged. A weak battery, poor charging connection, damaged chain, worn rollers, or a gate that drags on the track can cause symptoms that look like an operator problem even when the control board and motor are still working.
The MM-SL2000B is also part of a larger Mighty Mule / GTO / Linear slide gate ecosystem. Common add-on and service parts include remotes, keypads, photo beams, vehicle sensors, replacement transformer, No. 41 chain, concrete mounting bracket, and dual-slide second operator hardware. Correct site layout is important. For dual slide gates, a second operator kit is normally required for the second moving gate panel. Safety devices must be selected and installed for the actual gate opening, pinch points, and entrapment areas.
Compatible With
Single slide gates within the MM-SL2000B application range; commonly associated with Mighty Mule MM-SL2000B, GTO / Linear PRO SL-2000B, SL2000B, and second-operator dual slide applications using MM-SL2200B / SL-2200B where a second slide panel is present. Accessory compatibility commonly includes RB741/FM135 transmitters, FM134/RB742 transmitters, F310 digital keypad, F3100MBC wireless intercom keypad, RB101 push button, RB570 18V transformer, RB207 No. 41 chain, R4222 photo beams, SGMP concrete mounting bracket/pad, FM139/FM140/FM141 wired vehicle sensors, R4500 wireless vehicle sensor, R4450 driveway alarm, and FM345 pin lock where supported by the installation.
Features and Specifications
| Manufacturer | Mighty Mule / Linear / GTO |
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| Product Type | Heavy duty single slide gate opener |
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| Part Number | SL2000B |
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| Application | Automatic operation of compatible single slide gates |
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| Compatible Operator Type | 12V DC chain-driven slide gate system |
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| Gate Capacity | Up to 1000 lb and up to 30 ft gate length with up to 20 ft opening, when properly installed |
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| Power Platform | 12V DC battery-backed system with compatible charging source |
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| Related Dual Operator | MM-SL2200B / SL-2200B for dual slide applications |
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| Related Accessories | RB741, RB742, F310, RB570, RB207, R4222, SGMP, FM139, R4500 |
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| Safety Monitoring | Entrapment protection and warning devices required by the installation and current safety standards |
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Also Known As / Related Part Numbers
MM-SL2000B, SL2000B, SL-2000B, GTO SL-2000B, Linear PRO SL-2000B, Mighty Mule SL2000B, Mighty Mule Heavy Duty Slide Gate Opener, GTO slide gate opener, Linear slide gate opener, single slide gate operator, 12V DC slide gate operator
Technician Note
Before replacing an existing slide gate operator, disconnect the operator from the gate and roll the gate by hand. A properly sized slide operator cannot overcome a gate with worn rollers, a bent track, poor guide alignment, ground contact, or tight chain tension without shortening the life of the motor and drive components.
Before Ordering Checklist
- Measure total gate length and actual clear opening.
- Confirm gate weight and verify that the gate rolls smoothly by hand.
- Inspect track, rollers, guide rollers, chain path, end stops, and catch post.
- Plan required photo eyes, edge sensors, warning signs, and other safety devices.
- Confirm charging method, battery condition, and whether the site needs a single or dual slide setup.
Professional Advisory
Slide gate operators involve moving gate panels, pinch points, electrical wiring, and safety-device setup. Installation and troubleshooting should follow the operator manual and applicable safety requirements. High-voltage work, unsafe gate movement, or missing entrapment protection should be handled by a qualified gate technician.
Product Questions and Answers
What gate size is the MM-SL2000B commonly used for?
The MM-SL2000B is commonly listed for single slide gates up to 30 ft in total length with up to a 20 ft opening and up to 1000 lb gate weight when the gate rolls freely and is properly installed.
Can the MM-SL2000B be used on a dual slide gate?
For dual slide gate applications, the matching second operator kit such as MM-SL2200B / SL-2200B is typically required. Do not assume one operator can run two independent slide panels.
What accessories are commonly associated with the SL2000B?
Common related items include RB741/FM135 remotes, FM134/RB742 remotes, F310 keypad, RB570 transformer, RB207 No. 41 chain, R4222 photo beams, SGMP mounting pad, and compatible vehicle sensors.
Does a slide gate opener need safety devices?
Yes. Slide gate systems must be installed with the required entrapment protection and warning devices for the site. Do not bypass photo eyes, edge sensors, or other required safety equipment.
What should be checked before replacing an older slide gate operator with this model?
Check gate weight, gate length, opening size, track and roller condition, power source, battery charging method, safety device layout, chain condition, and whether the site is single-panel or dual-panel.
