Dropsa Cross-Reference
Dropsa is an Italian centralised-lubrication brand sold worldwide, built around a handful of named system types: Single Line 01 (spiral divider), 33V positive-displacement injectors, and Progressive Divider valve systems. AMAG's own range covers the same duty classes. This isn't a part-number match. Send the nameplate code and a photo and we'll confirm the exact one.
Which AMAG family matches your system
Dropsa
Single Line 01 (spiral divider)
A spiral divider (a long, narrow calibrated passage) continuously restricts oil flow to proportion it between points, with no moving parts to stick or wear.
AMAG's resist-type distributors run the same restriction-based, single-line proportioning duty, driven by a TZ, HL or NKHY hand pump built without a pressure take-off mechanism, the same pairing AMAG's own datasheets specify for these distributors.
Dropsa
33V injectors (and Single Line 01's cylindrical-divider build)
Positive-displacement injectors, or 01's cylindrical (check-valve) dividers, dose a fixed, measured quantity of oil per point per pump cycle regardless of pressure, viscosity or temperature.
AMAG's volumetric distributors (34 Type, 35 Type, RH3 Type) work on the same fixed-dose, positive-displacement principle, driven by a TZ or HL pump. The 35 Type and RH3 Type also run grease builds (RH3's G/GH) on the same principle. Click through for the pump each pairs with on that build. The 35 Type's M12×1 port also needs a PD35612 / PD35812 adapter from AMAG's fittings range to take standard tube.
Dropsa
Progressive Divider
A progressive spool arrangement splits pump flow into sequential outlets (each element completes its discharge before the next fires), with modular elements that can be swapped without stopping the machine.
AMAG's SD-series and U-Shaped Integrated Progressive distributors use the identical sequential-block principle, both running on a ZJ or PJ grease pump. Each also pairs with a further pump of its own; click through for the full list.
What AMAG carries
Motor-driven gear pumps with level switch, timer options and pressure take-off.
35 kgf/cm² output for platens, tie bars and progressive block systems.
Volumetric, inspecting, progressive block and resist-type proportioning.
The plumbing between the pump and the point: fittings, hose and adaptors.
Frequently asked questions
Is an AMAG pump a direct replacement for my Dropsa part?
Sometimes, but not automatically: output pressure, discharge rate and port thread all have to match before it's a safe swap. Send the nameplate code and a photo and we'll confirm rather than guess.
What should I send to get an answer?
The full code stamped on the nameplate, plus a clear photo of the plate itself. Lubrication pump and distributor order codes carry suffixes (outlet count, pressure class, voltage) that change the spec, and a partial code is a guess either way.
Does AMAG carry a replacement for Dropsa's Dual Line or Air-Oil systems?
No. AMAG's range covers resist-type, positive-displacement and progressive-block duty, not Dropsa's two-line reversing Dual Line system or its VIP4/SMX air-oil lines. If that's what's on your machine, tell us on WhatsApp and we'll say so rather than offer a mismatch.
Identify your Dropsa part
Send the nameplate code and a photo. We'll confirm whether an AMAG equivalent exists and quote it.