Showa Cross-Reference
Showa Corporation is a Japanese centralised-lubrication brand built around three named system types: resistance distribution, volumetric (piston) distribution, and progressive block distribution under its Dester line. 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
Showa
Resistance distribution
Oil from the pump is divided proportionally by applying calibrated flow resistance at each distribution point, rather than a mechanical valve.
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.
Showa
Volumetric distribution
Piston distributors discharge a pre-measured, fixed volume of oil per outlet per pump stroke; different-volume blocks can be mixed within one system.
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.
Showa
Progressive block distribution (Dester G / SG-series)
Internal metering pistons are linked so each fires in sequence, only advancing to the next once the previous one completes its stroke. A blocked outlet stalls the whole sequence, so the system's health can be checked from one point.
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 Showa 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 Showa's oil-air (MOA/DM) or ShowaMist spray systems?
No. AMAG's range covers resist-type, positive-displacement and progressive-block oil/grease duty, not Showa's air-entrained oil-air or spray-mist 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 Showa part
Send the nameplate code and a photo. We'll confirm whether an AMAG equivalent exists and quote it.