Pneumatic Rack and Pinion Rotary
Actuators by El-O-Matic

Specifications

Operating Pressure

90° Models
Double Acting: 20 to 120 psig
Spring Return: 40 to 120 psig

180° Models
Maximum Air Pressure: 80 psig (except E12)

Temperature Range
Standard: -4 to 175°F
Optional: -4 to 250°F / -40 to 175°F

Media
Double Acting: 20 to 120 psig
Spring Return: 40 to 120 psig

Rotation
Counterclockwise with Port "A" pressurized. Spring return actuators fail clockwise. Rotation is field reversible.

Lubrication
Factory lubricated for the normal life of the actuator.

Coating
Premium Powder Coating.

"E" & "P" Series Spring Return Torque

(90°: Torque in lb.in.)

		Air Stroke (lb.in.)
		Supply Pressure (in psi)										Spring Stroke
	No. of	40		60		80		100		120		lb.in.
Model	Springs	C	D	C	D	C	D	C	D	C	D	E	F
ES 12	2	-	-	48	23	80	56	112	87	143	119	64	41
ES 25	1	93	80	152	139	211	197	270	257	329	315	31	20
	2	71	44	129	103	189	162	248	220	306	280	63	39
	3	49	8	107	66	166	126	225	185	284	243	94	58
	4	-	-	85	31	144	90	202	149	261	206	125	78
	5	-	-	-	-	121	54	180	113	239	172	156	98
	6	-	-	-	-	99	18	157	77	216	136	188	117
ES 40	1	175	150	286	260	396	371	506	481	617	591	58	36
	2	133	82	243	193	354	304	464	413	574	524	117	74
	3	90	15	201	126	312	236	422	346	533	457	176	110
	4	-	-	159	58	270	169	380	279	491	390	234	146
	5	-	-	-	-	228	101	338	212	449	322	293	183
	6	-	-	-	-	185	34	296	144	407	255	351	220
ES 65	1	264	224	432	392	600	560	768	728	936	898	93	58
	2	197	117	365	285	533	453	701	622	869	790	186	117
	3	129	10	297	178	466	347	634	515	802	683	279	175
	4	-	-	230	72	398	240	566	408	735	576	372	234
	5	-	-	-	-	331	133	499	301	667	469	465	292
	6	-	-	-	-	264	26	432	195	601	363	558	351
ES 100	1	397	341	645	590	894	838	1143	1087	1392	1337	129	81
	2	304	192	552	441	801	690	1051	939	1299	1188	258	161
	3	211	43	459	293	709	542	958	790	1206	1039	388	242
	4	-	-	366	143	615	392	863	641	1112	889	516	323
	5	-	-	-	-	522	244	771	492	1019	741	646	403
	6	-	-	-	-	429	95	678	344	927	593	775	484
ES 200	1	864	739	1409	1284	1955	1830	2500	2376	3046	2922	289	181
	2	656	406	1201	952	1747	1498	2292	2043	2839	2589	579	361
	3	448	73	994	620	1539	1165	2065	1711	2630	2256	868	543
	4	-	-	786	287	1332	833	1878	1378	2423	1924	1157	723
	5	-	-	-	-	1124	500	1670	1045	2216	1592	1447	904
	6	-	-	-	-	916	167	1462	713	2008	1259	1736	1065
ES 350	1	1483	1273	2431	2221	3379	3169	4327	4117	5276	5065	513	329
	2	1106	684	2053	1632	3001	2580	3949	3528	4897	4477	1025	659
	3	727	96	1675	1044	2623	1991	3571	2939	4519	3887	1537	988
	4	-	-	1297	454	2245	1403	3192	2351	4140	3299	2049	1316
	5	-	-	-	-	1867	813	2815	1762	3762	2710	2561	1645
	6	-	-	-	-	1488	225	2436	1173	3384	2121	3074	1975
ES 600	1	2542	2174	4153	3785	5764	5395	7375	7007	8966	8618	861	541
	2	1920	1183	3531	2794	5142	4405	6753	6017	8364	7628	1723	1083
	3	1298	193	2908	1804	4520	3415	6131	5026	7742	6637	2584	1623
	4	-	-	2287	813	3898	2425	5509	4036	7120	5647	3447	2165
	5	-	-	-	-	3276	1435	4887	3046	6498	4656	4308	2706
	6	-	-	-	-	2654	444	4265	2055	5876	3666	5170	3247
ES 950	1	3810	3250	6215	5655	8620	8060	11025	10464	13430	12869	1282	794
	2	2898	1777	5303	4182	7708	6587	10113	8992	12518	11396	2562	1587
	3	1966	305	4391	2709	6796	5114	9200	7519	11605	9924	3844	2381
	4	-	-	3478	1237	5883	3641	8289	6046	10694	8451	5126	3175
	5	-	-	-	-	4972	2168	7376	4573	9781	6978	6407	3968
	6	-	-	-	-	4059	696	6464	3100	8869	5505	7688	4762
ES 1600	1	6286	5397	10262	9373	14237	13349	18213	17325	22188	21299	2096	1323
	2	4765	2988	8741	6964	12716	10939	16692	14914	20668	18890	4193	2646
	3	3245	579	7220	4554	11195	8530	15171	12505	19147	16481	6289	3970
	4	-	-	5699	2145	9675	6120	13650	10095	17625	14071	8385	5293
	5	-	-	-	-	8153	3710	12129	7686	16105	11662	10481	6616
	6	-	-	-	-	6633	1301	10609	5277	14583	9252	12578	7939
PSA 2505	8	5251	1781	11245	7775	17239	13769	23233	19763	29227	25758	9351	5868
	10	-	-	9615	5277	15609	11272	21603	17266	27597	23260	11689	7335
	12	-	-	7985	2780	13979	8774	19973	14768	25967	20763	14026	8803
	14	-	-	-	-	12349	6277	18343	12271	24337	18265	16364	10270
PSA 4005	8	8949	3096	19111	13257	29272	23418	39434	33580	49595	43741	15780	9905
	10	-	-	16359	9042	26521	19204	36682	29365	46844	39527	19725	12381
	12	-	-	13608	4827	23770	14989	33931	25150	44092	35312	23670	14857
	14	-	-	-	-	21018	10774	31180	20936	41341	31097	27615	17333

C = Air Start

D = Air End

E = Spring Start

F = Spring End

Note:
EL-O-MATIC 180° actuators produce half the torque of 90° models
(max. air pressure 80 psi)
E12 produces same torque as 90°. Consult EL-O-MATIC for sizing and availability.

Features

Three Point Suspension Systems
Three carbon filled Teflon© guide bands provide a low friction bearing surface for piston alignment and rack support.

Elimination of metal-to-metal contact between pistons and cylinder wall reduces friction for outstanding cycle life, smooth piston travel, and maximum power.

Patented Balanced Piston Design
As part of our exclusive suspension system, three equally spaced bearing surfaces are cast into each piston. Air pressure is applied to two piston areas simultaneously to deliver a "balanced force" across the diameter of a common pinion gear.

Transfer of maximum power occurs along the central guide band at the point of rack and pinion contact resulting in even distribution of bearing loads, optimum gear engagement, and elimination of piston tilting.

Dual Opposed Piston Design
Air pressure is applied to two piston areas simultaneously to deliver a "balanced force" across the diameter of a common pinion gear.

Dual opposed design results in a piston diameter 41% smaller than a single piston design. Symmetrically balanced center mount construction eliminates undue stress on valve stem, neck, and piping system.

Alloy 70-75 Drive Shaft
High performance aluminum alloy exclusive to EL-O-MATIC actuators ensures precision rack and pinion engagement.

Lightweight alloy shaft provides greater corrosion resistance.

Multiple Spring Concept
Off-the-shelf availability of multiple spring design means actuators are available for 40, 60, 80, or 100 psig supply air requirements.

Equal spring force application to each piston enhances actuator life while conversion from double acting to spring return is simple and safe.

Recessed Output Drive
All units feature a recessed square drive that is precision machined for accurate positioning and is designed to ISO 5211.

A universal adapter is available to provide "direct couple" to valve stem (E25 through E1600 only).

Operation

EL-O-MATIC rack and pinion actuators are manufactured with an integral air manifold and internal porting. The air manifold is designed to NAMUR standards for direct mounting of the EL-O-MATIC solenoid valve module. This eliminates the need for external tubing and simplifies installation. For applications not requiring a solenoid valve, the air manifold inlet ports are marked "A" and "B".

Air-To-Air (Double Acting)

Air To Port "A"
Pressure is applied to the central chamber driving the dual opposing pistons outward. Linear piston force is transferred via gear racks to the pinion gear to produce rotary (counterclockwise) motion.

Air To Port "B"
Pressure is applied to the outside chambers through the internal port driving the pistons inward to produce rotary (clockwise) motion.

Spring Return (Single Acting)

Air To Port "A"
Pressure is applied to the center chamber driving the pistons outward. This compresses the springs in the outside chambers and produces rotary (counterclockwise) motion.

Loss of Pressure
Upon loss of pressure the stored energy in the compressed springs drives the pistons inward producing rotary (clockwise) motion. This "fail safe" position is held until air pressure is reapplied to Port "A".

E Series Schematic and Dimensions

DIM in   inches	E12	E25	E40	E65	E100	E200	E350	E600	E950	E1600
A EDA	For E12	6.26	7.09	7.84	8.70	11.14	12.01	15.24	16.69	20.31
B ESA	dimensions	6.77	8.03	9.80	10.51	14.17	15.24	18.78	20.35	25.08
C	see	3.15	3.66	4.13	4.65	5.63	7.13	8.66	10.20	11.69
D	A1, 103, 102	0.79	0.79	0.79	0.79	0.79	0.79	1.18	1.18	1.18
E	-	0.63	0.87	0.87	0.87	1.42	1.42	2.17	2.17	2.52
E2	-	0.91	1.18	1.18	1.18	1.77	1.77	2.56	2.56	2.95
F	-	0.39	0.55	0.55	0.55	0.75	0.75	1.42	1.42	1.42
G	-	0.47	0.47	0.47	0.47	0.47	0.47	0.39	0.39	0.39
H	-	2.91	3.39	3.86	4.25	5.04	6.81	8.15	9.09	10.43
I	-	1.80	2.07	2.26	2.46	2.85	3.71	4.45	4.96	5.59
J	-	1.26	1.32	1.54	1.59	1.99	2.85	3.33	4.15	4.74
M	-	1.36	1.36	1.36	1.36	1.97	1.97	2.05	2.52	3.23
N	-	0.04	0.04	0.04	0.06	0.06	0.06	0.06	0.06	0.06
O max.	-	0.436	0.554	0.554	0.751	0.87	1.068	1.067	1.424	1.817
O min.	-	0.433	0.551	0.551	0.748	0.866	1.063	1.063	1.417	1.811
P	-	0.555	.713	0.713	0.992	1.11	1.425	1.425	1.898	2.370
R	-	2.05	2.76	2.76	2.76	3.54	4.49	4.88	5.12	6.06
R1	-	1.97	1.97	1.97	2.36	2.36	2.36	3.54	3.54	4.92
S	-	2.05	2.56	2.76	2.76	3.54	4.49	4.88	5.59	11.02
S1	-	3.94	3.94	3.94	3.94	3.94	3.94	6.69	6.69	8.27
V	-	-	1.969	1.969	1.969	2.756	2.756	4.016	4.016	6.496
V1	-	1.969	2.756	2.756	2.756	4.016	4.016	4.921	5.512	-
W	-	-	1/4" - 20X .39	1/4" - 20X .39	1/4" - 20X .39	5/16" -18X .39	5/16" -18X .39	3/8" -16X .63	3/8" -16X .63	3/4" -10X 1.14
W1	-	1/4" - 20X .39	5/16" -18X .39	5/16" -18X .39	5/16" -18X .39	3/8" -16X .63	3/8" -16X .63	1/2" -13X .79	5/8" -11X .98	-

Note:
1. Flange and square drive to ISO 5211
2. Top and Solenoid flange to VDI/VDE 3845 (NAMUR)
3. Other inserts optional

P Series Schematic and Dimensions

DIM in   inches	P2505	P4005
A PDA	14.88	19.76
B PSA	22.44	32.83
C	14.02	14.96
D	1.18	1.18
E	2.160	2.530
E2	2.56	2.95
F	1.420	1.420
G	0.394	0.394
H	13.80	14.95
I	7.28	7.87
J	7.01	7.48
M	2.60	3.03
N	1.118	0.059
O max.	1.817	2.173
O min.	1.811	2.165
P	2.370	2.842
R	6.69	6.69
R1	6.30	6.30
R2	-	10.31
S1	11.42	11.42
T	9.24	-
U	3.83	-
V	6.496	10
V1	-	6.496
W	3/4" - 10 X .98	5/8" - 11 X .79
W1	-	3/4" - 10 X .98
W2	5/8" - 11 X .79	-

Note:
1. Flange and square drive to ISO 5211
2. Top and Solenoid flange to VDI/VDE 3845 (NAMUR)
3. Other inserts optional

Options

Solenoid Valve
Mounts directly to actuator air inlet manifold. Available in NEMA 4 or 7 and with any AC or DC voltage. Manual override is standard. Modular Options: Speed controls, dual coil, intrinsically safe.

Manual Override Unit
Declutchable gear design fits between valve and actuator. Five model sizes are MO10, 50, 160, 520, and 600. Compact, modular, and fully enclosed. Modular Options: Vent valve package, padlockable declutch.

180° Actuation
Extended rotation for multi-ported valves. Modification from standard 90° version requires a simple gearing change. Available in both 2 position, 3 position, double acting, and spring return versions (E12 and "P" Series only).

DC-1 Dribble Control System
Effectively converts any quarter turn valve into a two-stage shutoff valve for accurate batch process control. A fully adjustable first stage frow rate feature allows adjustment of flow volume to acommodate various fluid and process system changes. Modular Options: Switch indicator, various NEMA ratings.

"OMNI SWITCH" HDN Indicating Module
Accurate and reliable rotary limit switch package with visual positin indicator for use with all EL-O-MATIC rack and pinion actuators and other rotary devices. Standard unit contains two SPDT snap-acting switches that are independently adjustable. Rugged housing is CSA listed for locations requiring NEMA 4, 7and/or 9 enclosures. Modular Options: 4 or 6 switches, hermetically sealed switches, inductive sensors, potentiomenter.

Performance Characteristics

Model			E12	E25	E40	E65	E100	E200	E350	E600	E950	E1600	P2505	P4005
Bore		inch	1.8	2.2	2.8	3.1	3.6	4.3	5.7	6.9	7.9	9.1	11.8	12.8
Stroke		inch	0.5	0.6	0.7	0.9	1.0	1.5	1.5	1.7	2.0	2.5	2.2	3.2
Weight	Double acting	lb.	1.3	2.9	4.0	5.3	4.0	12.8	22.9	42.8	58.2	94.1	125	191
	Spring return	lb.	1.5	3.7	5.3	7.9	10.1	20.1	37.3	60.8	85.1	145.1	194	291
Operating Time		sec.	0.4	0.5	0.7	1.1	1.2	2.3	3.6	4.5	5.4	6.9	7	12
Air Consumption		stroke	3.1	6.1	9.8	20.1	21.4	49	110	177	287	445	488	824
Atl atm (cu./in.)		stroke	3.7	6.7	13.4	22.0	29.9	61	116	189	299	488	568	1.068