SLS-1000 Auto-Opening Manhole

Knappco, the largest manufacturer of manholes in the world, introduces the revolutionary new SLS auto-opening manhole. The SLS is durable enough to handle the day-to-day loading of dry bulk products like sand, cement, grain, fly ash, limestone and more, without the need for the operator to climb to the top of the trailer to open the manhole. Just roll up to the loading rack, activate the pneumatic control to open the manhole from ground level and fill 'er up. It's that simple, and that safe. With the injury rate rising from drivers physically opening manholes, doesn't it make sense to protect your employees while saving yourself the expense of liability?

• Keeps your operator safely on the ground
• Increases efficiency by eliminating the need for the driver to go on top of the tank
• Inflatable gasket ensures the that the cover has a
  positive seal at all times
• No welding required for installation
• Trailer’s low profile is retained when retrofitted
• Easy to operate controls
• Indicator for open and closed
• Long-lasting inflatable gasket
• Design is retrofittable, eliminating costly conversion labor
• Reliable pneumatic control