Udor MTP138 PTO Multiplier

The Udor MTP138 is a heavy-duty PTO speed multiplier designed to drive Udor ZETA series diaphragm pumps from a standard 540 RPM tractor power take-off. With a 1:3.8 multiplication ratio, the MTP138 converts the tractor’s 540 RPM PTO input to approximately 2,050 RPM output — the optimal operating speed for Udor ZETA diaphragm pumps used in agricultural and horticultural spraying. Rated at 13.6 HP, this multiplier is built for the demands of broadacre crop spraying, orchard and vineyard treatment, and pasture management across New Zealand farms.

Specifications

Model	MTP138
Type	PTO Speed Multiplier
Max Power	13.6 HP (10.1 kW)
Gear Ratio	1:3.8 (multiplier)
PTO Input Speed	540 RPM (standard tractor PTO)
Output Speed	~2,050 RPM
Input Shaft	Conical 1:8
Compatible Pumps	Udor ZETA 170 / 200 / 230 / 260 / 300 / 350

Applications

• Tractor-mounted agricultural boom spraying for broadacre crops
• Orchard and vineyard spray programmes — fungicide, insecticide, and herbicide application
• Pasture and farm weed control across dairy, sheep, and beef operations
• Horticultural spraying — vegetable, berry, and kiwifruit operations
• Municipal and council roadside vegetation management
• Forestry spray applications — pre-plant and release spraying

Key Features

• 1:3.8 speed multiplication converts standard 540 RPM PTO to ~2,050 RPM pump speed
• 13.6 HP capacity — drives the full range of Udor ZETA diaphragm pumps
• Conical 1:8 input shaft for direct connection to standard tractor PTO
• Compatible with ZETA 170, 200, 230, 260, 300, and 350 diaphragm pumps
• Robust Italian-manufactured gearbox engineered for continuous agricultural duty
• Eliminates the need for a separate engine or hydraulic motor to drive the spray pump
• Simple bolt-on installation — mount the pump directly to the multiplier output

Technical Documents

• Udor MTP Multiplier Documents
• All Udor ZETA Diaphragm Pump Documents

Parts & Service

AES Waterblasters is the sole authorised New Zealand distributor for Udor products, carrying genuine spare parts and providing full technical support for the MTP138 multiplier and all compatible ZETA diaphragm pumps. Contact us on 09 271 4782 or email info@aesblasters.co.nz for pricing, availability, and technical advice on selecting the right pump and multiplier combination for your spraying application.

Related Models

Compatible Udor ZETA diaphragm pumps for use with the MTP138:

• Udor ZETA Series Diaphragm Pumps