VEVOR PTO gear pump · 20 cc
Seller: VEVOR NL · SKU: CLBBSXSCG20CC0001V0
Confirm the exact version, machine fit and delivery to your address with the seller before ordering.
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Exact product
20 cc/rev at 540 pump-shaft rpm gives 10.8 L/min theoretical flow with direct drive. This exact listing is a pump-and-PTO-gearbox assembly: the seller gives a 1:3.8 ratio. If that is a 3.8× speed increase with 540 rpm input, theoretical flow before losses is 41.04 L/min. Another seller passage calls 540 rpm the output speed, so the shaft-speed wording is ambiguous. The 40 L/min is an unverified seller claim for the geared assembly, not measured direct-drive flow; confirm both shaft speeds in the exact manual.
Before ordering
20 × 540 / 1000 = 10.8 L/min with direct drive; with 3.8× speed increase, theoretical flow is 41.04 L/min before losses. Confirm gearbox ratio, shaft speeds, rotation and permitted pressure in the exact manual. These are calculations, not measured flow.
These are seller specifications, not E10Shop hands-on test results. Confirm current price, stock, delivery and returns with VEVOR NL. An eligible purchase through our Awin link may earn E10Shop a commission. Payment and fulfillment are handled by VEVOR.
PTO hydraulic pump flow calculator: check the shaft speed
A 20 cc pump does not establish a flow rate until the actual pump-shaft speed is known. Use this calculation to check a listing, not to select an operating speed.
Theoretical L/min = cc/rev × PTO rpm × (pump rpm ÷ PTO rpm) ÷ 1000. A ratio of 1 means direct drive. A gearbox label such as 1:3.8 must be checked for its direction; it does not by itself confirm a 3.8× speed increase.
Theoretical flow before losses: 10.8 L/min
20 cc × 540 rpm ÷ 1000 = 10.8 L/min with direct drive. If the gearbox actually increases speed by 3.8×, the pump turns at 2052 rpm and the arithmetic result is 41.04 L/min before losses. These are scenarios, not measured delivery or approved operating settings.
Confirm both shaft speeds, maximum permitted speed, rotation, pressure, couplings and the hydraulic circuit in the exact manual. Actual flow under load depends on losses and operating conditions. This calculation does not establish pressure, safe compatibility or lifting capacity.
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