Gear Drive Rotors

Name: RainWell Gear Drive Rotors (RW-100 / RW-200 / RW-200H)
Brand: RainWell

Water-lubricated gear drive for medium and large turf: 4.8-14.44 m radius, 25°-360° arcs, ratcheting rack, standard or low-angle nozzles.

RW-100

3/4″ inlet, 11 cm pop-up, radius 7.22-14.44 m, PP body.

RW-200

3/4″ inlet, 12.5 cm pop-up, radius 7.22-14.44 m, ABS body.

RW-200H

1/2″ inlet, 12.5 cm pop-up, radius 4.8-10.7 m, compact zones.

Gear drive vs impact sprinkler: gear drive rotors rotate through a sealed gear train – quieter, no spray distortion from the arm strike, and lower flow required per zone. Impact sprinklers still win on gritty, unfiltered water because the mechanism is open and self-cleaning. For filtered landscape water, gear drive wins uniformity.

Model	Inlet	Pop-up	Radius	Flow	Pressure	Precipitation	Body	Warranty
RW-100	3/4″ F	11 cm	7.22-14.44 m	0.18-2.30 m³/h (3.0-38.2 l/min)	1.7-4.5 bar	6-25 mm/h	PP	1 year
RW-200	3/4″ F	12.5 cm	7.22-14.44 m	0.18-2.30 m³/h (3.0-38.2 l/min)	1.7-4.5 bar	6-25 mm/h	ABS	3 years
RW-200H	1/2″ F	12.5 cm	4.8-10.7 m	0.14-1.05 m³/h (2.28-17.5 l/min)	1.7-4.5 bar	10-21 mm/h	ABS	2 years

Feature highlights

Adjustable arc 25°-360°

Ratchet the rack to set the arc start; adjust angle at the top of the stem – no tools.

Radius by screw

One-turn radius reduction screw on the nozzle; exchange nozzles in seconds from the top.

Sealed against ingress

Spring-loaded wiper seal blocks dirt and keeps the stem retracting cleanly.

Water-lubricated gears

The catalog-stated lubrication system needs no grease and keeps rotation consistent over 500+ hours of continuous testing.

How does a gear drive sprinkler work?

Water spins a turbine that drives the nozzle through a sealed, water-lubricated gear train, giving slow, even rotation and a consistent precipitation rate across the arc.

What is the difference between RW-100 and RW-200?

Same 7.22-14.44 m radius class. RW-100 is a PP body with 11 cm pop-up; RW-200 is ABS with 12.5 cm pop-up. Nozzle kits: RW-100 ships with 2.5#, RW-200 with 2.0#.

Which rotor for a 1/2″ lateral?

RW-200H accepts a 1/2″ female inlet and covers 4.8-10.7 m – ideal for compact residential zones.

Can arcs be set from 90° to full circle?

Yes. Every RW rotor adjusts continuously from 25° to 360°.

Market terms (live harvest, Bing, Sep 2026):
EN: gear drive sprinkler, gear drive rotor sprinkler, gear driven sprinkler, gear drive vs impact sprinkler, gear drive pop up sprinklers
DE: getrieberegner, beregnungsanlage großflächen
FR: turbine arrosage enterré, arroseur rotatif réglable

Planning an irrigation project?

Send us your area, water source and crop or turf type – our engineers will reply with a system proposal.

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Frequently asked questions

Gear drive vs impact rotor — which should a distributor carry?

Gear drive rotors dominate residential and municipal retrofits for quiet, even coverage; impact heads still sell into agriculture and dust suppression. Carrying both covers the full market.

What radius range do your gear drive rotors cover?

RW-100 covers 7.22-14.44 m, RW-200 up to 15.8 m with a 3-year warranty line, and RW-200H fits compact 1/2″ inlet retrofits — together they span lawns to sports fields.

Wholesale & distributor program

RainWell supplies this line to irrigation distributors, landscape contractors and OEM assemblers worldwide. Mixed trial orders, wholesale price tiers and private label options are available — request the distributor price sheet with your market and expected volumes.