Medium Duty ISO Inch Series

(Solid Blue)

Efficient Operating Range is 20% to 37% deflection of free length. Maximum deflection is 37%; Long Life deflection is 25%; Optimum Life deflection is 20%. 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.

		37% Deflection		25% Deflection		20% Deflection
Part#	Free Length (In)	Load (lbs)	Deflection Length	Load (lbs)	Deflection Length	Load (lbs)	Deflection Length	Deflection Length Travel To Solid	Load @ .1″ Deflection (lbs)	Hole Dia.	Rod Dia.
DMD37-100	1	44	0.370	30	0.250	24	0.200	0.515	12	3/8	3/16
DMD37-125	1.25	42	0.463	28	0.313	23	0.250	0.576	9	3/8	3/16
DMD37-150	1.5	44	0.555	30	0.375	24	0.300	0.771	8	3/8	3/16
DMD37-175	1.75	47	0.648	32	0.438	25	0.350	0.922	7.2	3/8	3/16
DMD37-200	2	51	0.740	35	0.500	28	0.400	1.031	6.9	3/8	3/16
DMD37-250	2.5	40	0.925	27	0.625	22	0.500	1.226	4.3	3/8	3/16
DMD37-300	3	34	1.110	23	0.750	19	0.600	1.520	3.1	3/8	3/16
DMD37-1200	12	42	4.440	29	3.000	23	2.400	6.593	1	3/8	3/16
DMD50-100	1	63	0.370	43	0.250	34	0.200	0.443	17	1/2	9/32
DMD50-125	1.25	64	0.463	43	0.313	35	0.250	0.670	13.8	1/2	9/32
DMD50-150	1.5	58	0.555	39	0.375	32	0.300	0.720	10.5	1/2	9/32
DMD50-175	1.75	65	0.648	44	0.438	35	0.350	0.931	10	1/2	9/32
DMD50-200	2	61	0.740	41	0.500	33	0.400	1.023	8.2	1/2	9/32
DMD50-250	2.5	59	0.925	40	0.625	32	0.500	1.316	6.4	1/2	9/32
DMD50-300	3	64	1.110	44	0.750	35	0.600	1.639	5.8	1/2	9/32
DMD50-350	3.5	65	1.295	44	0.875	35	0.700	1.915	5	1/2	9/32
DMD50-1200	12	53	4.440	36	3.000	29	2.400	6.216	1.2	1/2	9/32
DMD62-100	1	107	0.370	73	0.250	58	0.200	0.431	29	5/8	11/32
DMD62-125	1.25	97	0.463	66	0.313	53	0.250	0.536	21	5/8	11/32
DMD62-150	1.5	100	0.555	68	0.375	54	0.300	0.609	18	5/8	11/32
DMD62-175	1.75	102	0.648	69	0.438	55	0.350	0.763	15.8	5/8	11/32
DMD62-200	2	108	0.740	73	0.500	58	0.400	0.892	14.6	5/8	11/32
DMD62-250	2.5	111	0.925	75	0.625	60	0.500	1.250	12	5/8	11/32
DMD62-300	3	118	1.110	80	0.750	64	0.600	1.550	10.6	5/8	11/32
DMD62-350	3.5	104	1.295	70	0.875	56	0.700	1.725	8	5/8	11/32
DMD62-400	4	102	1.480	69	1.000	55	0.800	2.053	6.9	5/8	11/32
DMD62-1200	12	111	4.440	75	3.000	60	2.400	6.439	2.5	5/8	11/32
DMD75-100	1	216	0.370	146	0.250	117	0.200	0.418	58.4	3/4	3/8
DMD75-125	1.25	202	0.463	136	0.313	109	0.250	0.554	43.6	3/4	3/8
DMD75-150	1.5	191	0.555	129	0.375	104	0.300	0.655	34.5	3/4	3/8
DMD75-175	1.75	194	0.648	131	0.438	105	0.350	0.766	30	3/4	3/8
DMD75-200	2	189	0.740	128	0.500	102	0.400	0.936	25.6	3/4	3/8
DMD75-250	2.5	199	0.925	134	0.625	108	0.500	1.228	21.5	3/4	3/8
DMD75-300	3	185	1.110	125	0.750	100	0.600	1.480	16.7	3/4	3/8
DMD75-350	3.5	185	1.295	125	0.875	100	0.700	1.757	14.3	3/4	3/8
DMD75-400	4	189	1.480	128	1.000	102	0.800	1.978	12.8	3/4	3/8
DMD75-450	4.5	190	1.665	128	1.125	103	0.900	2.127	11.4	3/4	3/8
DMD75-500	5	185	1.850	125	1.250	100	1.000	2.465	10	3/4	3/8
DMD75-550	5.5	187	2.035	127	1.375	101	1.100	2.764	9.2	3/4	3/8
DMD75-600	6	200	2.220	135	1.500	108	1.200	2.749	9	3/4	3/8
DMD75-1200	12	173	4.440	117	3.000	94	2.400	5.827	3.9	3/4	3/8
DMD100-100	1	335	0.370	226	0.250	181	0.200	0.387	90.5	1	1/2
DMD100-125	1.25	288	0.463	195	0.313	156	0.250	0.525	62.2	1	1/2
DMD100-150	1.5	273	0.555	185	0.375	148	0.300	0.627	49.2	1	1/2
DMD100-175	1.75	277	0.648	187	0.438	150	0.350	0.763	42.8	1	1/2
DMD100-200	2	284	0.740	192	0.500	154	0.400	0.900	38.4	1	1/2
DMD100-250	2.5	310	0.925	209	0.625	168	0.500	1.162	33.5	1	1/2
DMD100-300	3	275	1.110	186	0.750	149	0.600	1.415	24.8	1	1/2
DMD100-350	3.5	282	1.295	191	0.875	153	0.700	1.685	21.8	1	1/2
DMD100-400	4	271	1.480	183	1.000	146	0.800	1.928	18.3	1	1/2
DMD100-450	4.5	268	1.665	181	1.125	145	0.900	2.228	16.1	1	1/2
DMD100-500	5	268	1.850	181	1.250	145	1.000	2.538	14.5	1	1/2
DMD100-550	5.5	263	2.035	177	1.375	142	1.100	2.652	12.9	1	1/2
DMD100-600	6	262	2.220	177	1.500	142	1.200	2.952	11.8	1	1/2
DMD100-700	7	259	2.590	175	1.750	140	1.400	3.466	10	1	1/2
DMD100-800	8	260	2.960	176	2.000	141	1.600	3.922	8.8	1	1/2
DMD100-1200	12	289	4.440	195	3.000	156	2.400	6.100	6.5	1	1/2
DMD125-150	1.5	586	0.555	396	0.375	317	0.300	0.584	105.5	1-1/4	5/8
DMD125-175	1.75	590	0.648	399	0.438	319	0.350	0.720	91	1-1/4	5/8
DMD125-200	2	592	0.740	400	0.500	320	0.400	0.820	80	1-1/4	5/8
DMD125-250	2.5	588	0.925	398	0.625	318	0.500	1.081	63.6	1-1/4	5/8
DMD125-300	3	585	1.110	395	0.750	316	0.600	1.280	52.7	1-1/4	5/8
DMD125-350	3.5	603	1.295	408	0.875	326	0.700	1.530	46.6	1-1/4	5/8
DMD125-400	4	579	1.480	391	1.000	313	0.800	1.796	39.1	1-1/4	5/8
DMD125-450	4.5	573	1.665	387	1.125	310	0.900	2.040	34.4	1-1/4	5/8
DMD125-500	5	566	1.850	383	1.250	306	1.000	2.265	30.6	1-1/4	5/8
DMD125-550	5.5	568	2.035	384	1.375	307	1.100	2.549	27.9	1-1/4	5/8
DMD125-600	6	582	2.220	393	1.500	314	1.200	2.725	26.2	1-1/4	5/8
DMD125-700	7	559	2.590	378	1.750	302	1.400	3.220	21.6	1-1/4	5/8
DMD125-800	8	556	2.960	376	2.000	301	1.600	3.680	18.8	1-1/4	5/8
DMD125-1000	10	537	3.700	363	2.500	290	2.000	4.612	14.5	1-1/4	5/8
DMD125-1200	12	546	4.400	372	3.000	298	2.400	5.433	12.4	1-1/4	5/8
DMD150-200	2	892	0.740	603	0.500	482	0.400	0.774	120.6	1/1/2	3/4
DMD150-250	2.5	740	0.925	500	0.625	400	0.500	1.018	80	1/1/2	3/4
DMD150-300	3	730	1.110	494	0.750	395	0.600	1.281	65.8	1/1/2	3/4
DMD150-350	3.5	699	1.295	473	0.875	378	0.700	1.519	54	1/1/2	3/4
DMD150-400	4	789	1.480	533	1.000	426	0.800	1.767	53.3	1/1/2	3/4
DMD150-450	4.5	721	1.665	487	1.125	390	0.900	2.057	43.3	1/1/2	3/4
DMD150-500	5	688	1.850	465	1.250	372	1.000	2.300	37.2	1/1/2	3/4
DMD150-550	5.5	692	2.035	468	1.375	374	1.100	2.598	34	1/1/2	3/4
DMD150-600	6	682	2.220	461	1.500	368	1.200	2.843	30.7	1/1/2	3/4
DMD150-700	7	673	2.590	455	1.750	364	1.400	3.329	26	1/1/2	3/4
DMD150-800	8	693	2.960	468	2.000	374	1.600	4.018	23.4	1/1/2	3/4
DMD150-1000	10	759	3.700	513	2.500	410	2.000	4.620	20.5	1/1/2	3/4
DMD150-1200	12	639	4.440	432	3.000	346	2.400	5.735	14.4	1/1/2	3/4
DMD200-250	2.5	1036	0.925	700	0.625	560	0.500	1.017	112	2	1
DMD200-300	3	971	1.110	656	0.750	525	0.600	1.284	87.5	2	1
DMD200-350	3.5	971	1.295	656	0.875	525	0.700	1.550	75	2	1
DMD200-400	4	940	1.480	635	1.000	508	0.800	1.786	63.5	2	1
DMD200-450	4.5	957	1.665	647	1.125	518	0.900	1.979	57.5	2	1
DMD200-500	5	981	1.850	663	1.250	530	1.000	2.258	53	2	1
DMD200-550	5.5	1009	2.035	682	1.375	546	1.100	2.503	49.6	2	1
DMD200-600	6	1041	2.220	704	1.500	563	1.200	2.817	46.9	2	1
DMD200-700	7	1002	2.590	677	1.750	542	1.400	3.291	38.7	2	1
DMD200-800	8	977	2.960	660	2.000	528	1.600	3.892	33	2	1
DMD200-900	9	966	3.330	652	2.250	522	1.800	3.930	29	2	1
DMD200-1000	10	984	3.700	665	2.500	532	2.000	4.740	26.6	2	1
DMD200-1200	12	932	4.440	630	3.000	504	2.400	5.870	21	2	1
DMD250-300	3	1931	1.110	1305	0.750	1044	0.600	1.290	174	2-1/2	1-1/2
DMD250-350	3.5	1852	1.295	1251	0.875	1001	0.700	1.520	143	2-1/2	1-1/2
DMD250-400	4	1790	1.480	1210	1.000	968	0.800	1.740	121	2-1/2	1-1/2
DMD250-450	4.5	1765	1.665	1192	1.125	954	0.900	1.980	106	2-1/2	1-1/2
DMD250-500	5	1733	1.850	1171	1.250	937	1.000	2.220	93.7	2-1/2	1-1/2
DMD250-600	6	1683	2.220	1137	1.500	910	1.200	2.670	75.8	2-1/2	1-1/2
DMD250-700	7	1650	2.590	1115	1.750	892	1.400	3.120	63.7	2-1/2	1-1/2
DMD250-800	8	1625	2.960	1098	2.000	878	1.600	3.570	54.9	2-1/2	1-1/2
DMD250-900	9	1622	3.330	1096	2.250	877	1.800	4.060	48.7	2-1/2	1-1/2
DMD250-1000	10	1620	3.700	1095	2.500	876	2.000	4.560	43.8	2-1/2	1-1/2
DMD250-1200	12	1607	4.440	1086	3.000	869	2.400	5.450	36.2	2-1/2	1-1/2