Iwata Air Cap Chart & Overview – Insider #113

Introduction to Iwata Air Caps

This is the most comprehensive Iwata Air Cap (SYNO: Air Nozzle) selection chart covering more than 48 different air caps. The guide enables the user to find the correct part number based on the air cap color, number or code that is stamped on the air cap. It also provides information suc as:

  • Pressure Operating Range (bar and psi)
  • Air Flow (lpm and scfm)
  • Pattern Size (mm and inch)
  • Air Cap/Nozzle Type (whether conventional, HVLP or LVMP)
  • Iwata Part Number
  • Iwata Spray Gun Model the air cap is used in

The guide includes the Iwata W400 (including W400 LV4), Kiwami, WS400, LPH400 (orange and silver), W71, W77, LS-400 Supernova, WS-400HD Supernova, LPH50, LPH80, RG3L, LPH101, LPH200, W101, W200 and W300.

Iwata Air Cap Model Overview

Model No. Part No. Marked as (color) Atomizing Air Pressure (bar/psi) Air Flow (lpm/scfm) Pattern Size (mm/inch) Air Cap Type Spray Gun Model
0 93901911 0 3.5/50 430/15.2 445/15.0 conventional W77
0 93900020 0 3.5/50 241/8.5 190/7.5 conventional W71
01 93505300 01 2.0/29 368/13.0 370/14.6 compliant  WS-400HD Supernova
02 93903911 02 3.5/50 250/8.8 254/10.0 conventional W77
02 93900110 02 3.5/50 229/8.1 264/10.4 conventional W71
03 93903901 03 3.5/50 430/15.2 445/17.5 conventional W77
05 93512100 05 green 1.8/26 420/14.8 320/12.6 HVLP LS-400 Supernova
1 93022890 1 2.5/36 30/1.1 25/1.0 round RG3L
2 93901901 2 3.5/50 250/8.8 254/10.0 conventional W77
2 93901020 2 3.0/43 85/3.0 135/5.3 conventional W71
2 93025880 2.5/36 30/1.1 35/1.4 round  RG3L 
3 93900911 3 3.5/50 325/11.5 330/13.0 conventional W77
3 93026880  2.5/36  50/1.8 35/1.4  round  RG3L 
11 93902911 11 3.5/50 290/10.1 290/11.4 conventional W77
21 93902901 21 3.5/50 340/12.0 330/13.0 conventional W77
21 93900090 21 3.0/43 195/6.9 165/6.5 conventional W71
31 93900100 31 3.0/43 230/8.2 185/7.3 conventional W71
E1 93832532 LPH101-E1 2.5/36 430/15.2 200/7.9  conventional  LPH101P/LVP pressure feed
E1 93689610 E1 2.5/36.3 80/2.6 130/5.1  conventional  W101 gravity feed
E1 93689610 E1 2.5/36.3 80/2.6  100/3.9  conventional  W300
E2 93557600 LPH50-E2 0.9/13 50/1.8 100/3.9 HVLP  LPH50
E2 93557600 LPH80-E2 0.9/13 50/1.8 120/4.7 HVLP LPH80
E2P 93704610 W101-E2P 2.5/36.3 221/7.8 240/9.5 conventional   W101 pressure feed
E4 93662600 LPH80-E4 1.0/14 60/2.2 140/5.5 HVLP LPH80
G2 93811602 LPH101-G2 3.5/50 530/18.7 270/10.6   conventional  LPH101P/LVP pressure feed
G2 93822601 LPH200-G2 2.0/28  500/17.7 318/12.5 HVLP  LPH200P/LPH2003
G2P 93818611 W200-G2P 3.0/43 560/19.8 400/15.7  conventional  W200/W203
pressure feed
H2 93696610 H2 2.5/36.3  225/7.9 175/6.9  conventional   W101 gravity feed, W300
H4 93662610 W101-H4 2.0/28.0  210/6.9 205/8.0 conventional W300, W101 gravity feed, W101A 
K1 93817611 W200-K1 3.0/43  200/7.1 220/8.7 conventional W200
K1 93735610 W101-K1 2.5/36.3  144/5.1 170/6.7  conventional  W101 gravity feed
K1 93735610 W101-K1 2.5/36.3 145/5.1 130/5.1  conventional W300
K2 93816611 W200-K2 3.0/43  330/11.7 320/12.6 conventional  W200 gravity feed
K2 93802340         conventional  W89
gravity feed
K21G 93831351         conventional  W89
gravity feed
K5 93801340         conventional  W89
gravity feed
N1 93700610 W101-N1 2.5/36.3 170/6.0 190/7.5  conventional   W101 gravity feed 
N1 93700610 W101-N1 2.5/36.3 150/5.3 160/6.3  conventional W300
 LV1 93859611   3.0/43 380/13.4 320/12.6 conventional W400 gravity feed
LV2 93830611   3.0/43 370/13.1 340/13.4 conventional W400 gravity feed
LV4 93875602 LPH101-LV4 1.3/18 240/8.5 220/8.7 HVLP LPH101LVG/LVS gravity feed, LPH300LV
LV4 (silver) 93874601 LPH400-LV4 1.1/16  270/9.5 320/12.6 HVLP LPH400-LV
LV6 93500651 LPH101-LV6 1.8/25 280/9.9 260/10.2 HVLP  LPH101P/LVP pressure feed
LV6 93587601 LPH200-LV6 2.4/35  413/14.6 510/20.1  HVLP  LPH200LVP
LVB (purple) 93524650 LPH400-LVB 1.0/14 235/8.3 335/13.2 HVLP LPH400-LVB
LVX (orange) 93548700 LPH400-LVX 1.1/16 275/9.8 330/13.0 HVLP LPH400-LVX
R1 93815610 W200-R1 3.0/43  260/9.2 280/11.0  conventional  W200 gravity feed
R1 93815610 W200-R1 2.9/42 270/9.53 400/15.7 conventional  W200/W203
pressure feed
R1 93803340         conventional  W89
gravity feed
R2 93814611 W200-R2 3.0/43 360/12.7 320/12.6  conventional  W200 gravity feed
R1Z 93871611 W200-R1Z 3.5/50 500/17.7 370/14.6 conventional   W200/W203
pressure feed
R5 93803350         conventional   W89
gravity feed
W1 93813611  W200-W1 3.0/43 360/12.7 310/12.2  conventional  W200 gravity feed

or Download Table (*.pdf, 275 KB)

Atomizing Air Pressure

The recommended atomizing air pressure, both in bar and psi, helps to set up the spray gun to the right pressure.

Air Flow Rate (Air Consumption)

The air flow rate, both lpm (liter per minute) and SCFM (standard cubic feet per minute), helps to determine the size of the compressor that is needed to operate the spay gun.

Maximum Spray Pattern Size

The maximum spray pattern is highly dependent on the nozzle size used, i.e. the same air cap will provide a wider spray pattern when used with a larger nozzle size. Another factor is whether the spray gun is used as a “gravity feed”, “suction feed” or “pressure feed”. Pressure-feed guns tend to produce the widest pattern, followed by gravity and then suction (in that order). Iwata usually has separate air caps for pressure-feed guns, while gravity and suction guns often share the same air cap. In this case, the guide will give the overall maximum spray pattern (which is then taken from the gravity feed).

Iwata Air Cap Test Kit

Iwata Air Cap Test Kits (often referred to as “Air Cap Gauges”) are available for most HVLP models to measure and verify that the maximum allowable pressure of 10 psi is not exceeded.


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