Extra Heavy Duty – Standard Inch Series

(White with Green Stripe)
Efficient Operating Range is 15% to 25% deflection of free length. Maximum deflection is 25%; Long Life deflection is 20%; Optimum Life deflection is 15%. Deflection beyond this Efficient Operating Range could result in premature spring failure. Travel to Solid is a reference dimension only and should never be approached during use.

			25% Deflection		20% Deflection		15% Deflection		Travel to Solid
Part#	Free Length (In)	Free Length (mm)	Load (lbs)	Deflection Length	Load (lbs)	Deflection Length	Load (lbs)	Deflection Length	Load (lbs)	Deflection Length	Load @ .1″ Deflection (lbs)	Hole Dia.	Rod Dia.
EH37-100	1	25.4	56	0.25	45	0.2	34	0.15	65	0.289	22.5	3/8	3/16
EH37-125	1.25	31.8	58	0.313	46	0.25	35	0.188	66	0.356	18.5	3/8	3/16
EH37-150	1.5	38.1	57	0.375	46	0.3	34	0.225	77	0.505	15.3	3/8	3/16
EH37-175	1.75	44.5	50	0.438	40	0.35	30	0.263	68	0.599	11.4	3/8	3/16
EH37-200	2	50.8	50	0.5	40	0.4	30	0.3	70	0.7	10	3/8	3/16
EH37-250	2.5	63.5	50	0.625	40	0.5	30	0.375	73	0.913	8	3/8	3/16
EH37-300	3	76.2	60	0.75	48	0.6	36	0.45	86	1.077	8	3/8	3/16
EH37-1200	12	304.8	60	3	48	2.4	36	1.8	92	4.585	2	3/8	3/16
EH50-100	1	25.4	91	0.25	73	0.2	55	0.15	135	0.371	36.5	1/2	9/32
EH50-125	1.25	31.8	94	0.313	75	0.25	56	0.188	132	0.439	30	1/2	9/32
EH50-150	1.5	38.1	93	0.375	74	0.3	56	0.225	117	0.471	24.8	1/2	9/32
EH50-175	1.75	44.5	97	0.438	77	0.35	58	0.263	144	0.651	22.1	1/2	9/32
EH50-200	2	50.8	95	0.5	76	0.4	57	0.3	142	0.747	19	1/2	9/32
EH50-250	2.5	63.5	90	0.625	72	0.5	54	0.375	132	0.916	14.4	1/2	9/32
EH50-300	3	76.2	84	0.75	67	0.6	50	0.45	123	1.094	11.2	1/2	9/32
EH50-350	3.5	88.9	83	0.875	67	0.7	50	0.525	115	1.211	9.5	1/2	9/32
EH50-1200	12	304.8	84	3	67	2.4	50	1.8	137	4.888	2.8	1/2	9/32
EH62-100	1	25.4	173	0.25	138	0.2	104	0.15	194	0.281	69	5/8	11/32
EH62-125	1.25	31.8	160	0.313	128	0.25	96	0.188	191	0.375	51	5/8	11/32
EH62-150	1.5	38.1	151	0.375	121	0.3	91	0.225	178	0.441	40.3	5/8	11/32
EH62-175	1.75	44.5	162	0.438	130	0.35	97	0.263	214	0.578	37	5/8	11/32
EH62-200	2	50.8	153	0.5	122	0.4	92	0.3	185	0.605	30.5	5/8	11/32
EH62-250	2.5	63.5	158	0.625	126	0.5	95	0.375	198	0.786	25.2	5/8	11/32
EH62-300	3	76.2	147	0.75	118	0.6	88	0.45	187	0.956	19.6	5/8	11/32
EH62-350	3.5	88.9	152	0.875	122	0.7	91	0.525	207	1.191	17.4	5/8	11/32
EH62-400	4	101.6	147	1	118	0.8	88	0.6	202	1.373	14.7	5/8	11/32
EH62-1200	12	304.8	150	3	120	2.4	90	1.8	219	4.388	5	5/8	11/32
EH75-100	1	25.4	363	0.25	290	0.2	218	0.15	381	0.263	145	3/4	3/8
EH75-125	1.25	31.8	398	0.313	318	0.25	239	0.188	433	0.341	127	3/4	3/8
EH75-150	1.5	38.1	324	0.375	260	0.3	195	0.225	403	0.466	86.5	3/4	3/8
EH75-175	1.75	44.5	369	0.438	295	0.35	221	0.263	482	0.573	84.2	3/4	3/8
EH75-200	2	50.8	362	0.5	289	0.4	217	0.3	483	0.668	72.3	3/4	3/8
EH75-250	2.5	63.5	316	0.625	253	0.5	190	0.375	430	0.85	50.6	3/4	3/8
EH75-300	3	76.2	311	0.75	249	0.6	187	0.45	421	1.014	41.5	3/4	3/8
EH75-350	3.5	88.9	332	0.875	265	0.7	199	0.525	439	1.158	37.9	3/4	3/8
EH75-400	4	101.6	300	1	240	0.8	180	0.6	420	1.399	30	3/4	3/8
EH75-450	4.5	114.3	341	1.125	273	0.9	205	0.675	485	1.602	30.3	3/4	3/8
EH75-500	5	127	344	1.25	275	1	206	0.75	474	1.722	27.5	3/4	3/8
EH75-550	5.5	139.7	303	1.375	242	1.1	182	0.825	435	1.976	22	3/4	3/8
EH75-600	6	152.4	332	1.5	265	1.2	199	0.9	467	2.111	22.1	3/4	3/8
EH75-1200	12	304.8	336	3	269	2.4	202	1.8	496	4.432	11.2	3/4	3/8
EH100-150	1.5	38.1	666	0.375	533	0.3	399	0.225	692	0.39	177.5	1	1/2
EH100-200	2	50.8	615	0.5	492	0.4	369	0.3	749	0.609	123	1	1/2
EH100-250	2.5	63.5	606	0.625	485	0.5	364	0.375	763	0.787	97	1	1/2
EH100-300	3	76.2	600	0.75	480	0.6	360	0.45	749	0.936	80	1	1/2
EH100-350	3.5	88.9	613	0.875	490	0.7	368	0.525	812	1.16	70	1	1/2
EH100-400	4	101.6	570	1	456	0.8	342	0.6	752	1.32	57	1	1/2
EH100-450	4.5	114.3	585	1.125	468	0.9	351	0.675	776	1.493	52	1	1/2
EH100-500	5	127	651	1.25	521	1	391	0.75	888	1.704	52.1	1	1/2
EH100-600	6	152.4	648	1.5	518	1.2	389	0.9	870	2.013	43.2	1	1/2
EH100-1200	12	304.8	642	3	514	2.4	385	1.8	934	4.366	21.4	1	1/2
EH125-200	2	50.8	975	0.5	780	0.4	585	0.3	1057	0.542	195	1-1/4	5/8
EH125-250	2.5	63.5	1058	0.625	846	0.5	635	0.375	1384	0.818	169.2	1-1/4	5/8
EH125-300	3	76.2	1027	0.75	821	0.6	616	0.45	1346	0.983	136.9	1-1/4	5/8
EH125-350	3.5	88.9	910	0.875	728	0.7	546	0.525	1194	1.148	104	1-1/4	5/8
EH125-400	4	101.6	875	1	700	0.8	525	0.6	1146	1.31	87.5	1-1/4	5/8
EH125-450	4.5	114.3	872	1.125	698	0.9	523	0.675	1181	1.524	77.5	1-1/4	5/8
EH125-500	5	127	881	1.25	705	1	529	0.75	1211	1.718	70.5	1-1/4	5/8
EH125-600	6	152.4	863	1.5	690	1.2	518	0.9	1195	2.078	57.5	1-1/4	5/8
EH125-800	8	203.2	986	2	789	1.6	592	1.2	1355	2.749	49.3	1-1/4	5/8
EH125-1000	10	254	948	2.5	758	2	569	1.5	1282	3.383	37.9	1-1/4	5/8
EH125-1200	12	304.8	825	3	660	2.4	495	1.8	1113	4.047	27.5	1-1/4	5/8
EH150-200	2	50.8			1416	0.4	1062	0.3	1558	0.44	354	1-1/2	3/4
EH150-250	2.5	63.5	1672	0.625	1338	0.5	1003	0.375	1693	0.633	267.5	1-1/2	3/4
EH150-300	3	76.2			1320	0.6	990	0.45	1617	0.735	220	1-1/2	3/4
EH150-350	3.5	88.9	1641	0.875	1313	0.7	984	0.525	1749	0.933	187.5	1-1/2	3/4
EH150-400	4	101.6	1650	1	1320	0.8	990	0.6	2041	1.237	165	1-1/2	3/4
EH150-450	4.5	114.3	1592	1.125	1274	0.9	955	0.675	1856	1.312	141.5	1-1/2	3/4
EH150-500	5	127	1625	1.25	1300	1	975	0.75	1968	1.514	130	1-1/2	3/4
EH150-600	6	152.4	1575	1.5	1260	1.2	945	0.9	1950	1.857	105	1-1/2	3/4
EH150-800	8	203.2	1740	2	1392	1.6	1044	1.2	2340	2.69	87	1-1/2	3/4
EH150-1000	10	254	1680	2.5	1344	2	1008	1.5	2332	3.47	67.2	1-1/2	3/4
EH150-1200	12	304.8	1560	3	1248	2.4	936	1.8	2215	4.26	52	1-1/2	3/4
EH200-250	2.5	63.5					1538	0.375	1968	0.48	410	2	1
EH200-300	3	76.2			1740	0.6	1305	0.45	1885	0.65	290	2	1
EH200-350	3.5	88.9			1925	0.7	1444	0.525	2200	0.8	275	2	1
EH200-400	4	101.6	2400	1	1920	0.8	1440	0.6	2424	1.01	240	2	1
EH200-450	4.5	114.3	2447	1.125	1958	0.9	1468	0.675	2675	1.23	217.5	2	1
EH200-500	5	127	2250	1.25	1800	1	1350	0.75	2538	1.41	180	2	1
EH200-600	6	152.4	2310	1.5	1848	1.2	1386	0.9	2726	1.77	154	2	1
EH200-800	8	203.2	2370	2	1896	1.6	1422	1.2	2939	2.48	118.5	2	1
EH200-1000	10	254	2200	2.5	1760	2	1320	1.5	2807	3.19	88	2	1
EH200-1200	12	304.8	2598	3	2078	2.4	1559	1.8	3377	3.9	86.6	2	1