HRT Series Pressure → Force Tables

Full reference tables for the HRT3, HRT4, HRT5, HRT6, HRT9 and HRT10 models, calculated at 25 bar increments across 500–1500 bar — tensioning force in kN, kg and ton at every point. View online or download as a single PDF.

Pressure to Force: One Formula

Each table is calculated from a single relationship based on the HRT model's effective piston area. As the pressure applied by the tool increases, the tensioning force transferred to the stud increases linearly.

Force (kN) = Pressure (bar) × Effective Area (cm²) × 0.01

Force (kg) = kN × 101.9716 | Ton = kg / 1000

The tables below show the full results of this formula for each model across 500–1500 bar, in 25 bar increments. If you'd like to automatically find the right model for your target pre-tension, you can use the Model Selector and LTF Calculator.

Pressure → Force Table by Model

Click a heading to see that model's full table. The 1500 bar row shows the model's nominal capacity.

HRT3Effective Piston Area: 44.01 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	44.01	220.1	22,438	22.4
525	44.01	231.1	23,560	23.6
550	44.01	242.1	24,682	24.7
575	44.01	253.1	25,804	25.8
600	44.01	264.1	26,926	26.9
625	44.01	275.1	28,048	28.0
650	44.01	286.1	29,170	29.2
675	44.01	297.1	30,292	30.3
700	44.01	308.1	31,414	31.4
725	44.01	319.1	32,536	32.5
750	44.01	330.1	33,658	33.7
775	44.01	341.1	34,780	34.8
800	44.01	352.1	35,902	35.9
825	44.01	363.1	37,024	37.0
850	44.01	374.1	38,145	38.1
875	44.01	385.1	39,267	39.3
900	44.01	396.1	40,389	40.4
925	44.01	407.1	41,511	41.5
950	44.01	418.1	42,633	42.6
975	44.01	429.1	43,755	43.8
1000	44.01	440.1	44,877	44.9
1025	44.01	451.1	45,999	46.0
1050	44.01	462.1	47,121	47.1
1075	44.01	473.1	48,243	48.2
1100	44.01	484.1	49,365	49.4
1125	44.01	495.1	50,487	50.5
1150	44.01	506.1	51,609	51.6
1175	44.01	517.1	52,730	52.7
1200	44.01	528.1	53,852	53.9
1225	44.01	539.1	54,974	55.0
1250	44.01	550.1	56,096	56.1
1275	44.01	561.1	57,218	57.2
1300	44.01	572.1	58,340	58.3
1325	44.01	583.1	59,462	59.5
1350	44.01	594.1	60,584	60.6
1375	44.01	605.1	61,706	61.7
1400	44.01	616.1	62,828	62.8
1425	44.01	627.1	63,950	64.0
1450	44.01	638.1	65,072	65.1
1475	44.01	649.1	66,194	66.2
1500	44.01	660.1	67,315	67.3

HRT4Effective Piston Area: 66.68 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	66.68	333.4	33,997	34.0
525	66.68	350.1	35,697	35.7
550	66.68	366.7	37,396	37.4
575	66.68	383.4	39,096	39.1
600	66.68	400.1	40,796	40.8
625	66.68	416.8	42,496	42.5
650	66.68	433.4	44,196	44.2
675	66.68	450.1	45,896	45.9
700	66.68	466.8	47,596	47.6
725	66.68	483.4	49,295	49.3
750	66.68	500.1	50,995	51.0
775	66.68	516.8	52,695	52.7
800	66.68	533.4	54,395	54.4
825	66.68	550.1	56,095	56.1
850	66.68	566.8	57,795	57.8
875	66.68	583.5	59,494	59.5
900	66.68	600.1	61,194	61.2
925	66.68	616.8	62,894	62.9
950	66.68	633.5	64,594	64.6
975	66.68	650.1	66,294	66.3
1000	66.68	666.8	67,994	68.0
1025	66.68	683.5	69,693	69.7
1050	66.68	700.1	71,393	71.4
1075	66.68	716.8	73,093	73.1
1100	66.68	733.5	74,793	74.8
1125	66.68	750.2	76,493	76.5
1150	66.68	766.8	78,193	78.2
1175	66.68	783.5	79,892	79.9
1200	66.68	800.2	81,592	81.6
1225	66.68	816.8	83,292	83.3
1250	66.68	833.5	84,992	85.0
1275	66.68	850.2	86,692	86.7
1300	66.68	866.8	88,392	88.4
1325	66.68	883.5	90,092	90.1
1350	66.68	900.2	91,791	91.8
1375	66.68	916.9	93,491	93.5
1400	66.68	933.5	95,191	95.2
1425	66.68	950.2	96,891	96.9
1450	66.68	966.9	98,591	98.6
1475	66.68	983.5	100,291	100.3
1500	66.68	1000.2	101,990	102.0

HRT5Effective Piston Area: 100.03 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	100.03	500.2	51,000	51.0
525	100.03	525.2	53,550	53.6
550	100.03	550.2	56,100	56.1
575	100.03	575.2	58,650	58.7
600	100.03	600.2	61,200	61.2
625	100.03	625.2	63,750	63.8
650	100.03	650.2	66,300	66.3
675	100.03	675.2	68,850	68.9
700	100.03	700.2	71,400	71.4
725	100.03	725.2	73,950	74.0
750	100.03	750.2	76,500	76.5
775	100.03	775.2	79,050	79.1
800	100.03	800.2	81,600	81.6
825	100.03	825.2	84,150	84.2
850	100.03	850.3	86,701	86.7
875	100.03	875.3	89,251	89.3
900	100.03	900.3	91,801	91.8
925	100.03	925.3	94,351	94.4
950	100.03	950.3	96,901	96.9
975	100.03	975.3	99,451	99.5
1000	100.03	1000.3	102,001	102.0
1025	100.03	1025.3	104,551	104.6
1050	100.03	1050.3	107,101	107.1
1075	100.03	1075.3	109,651	109.7
1100	100.03	1100.3	112,201	112.2
1125	100.03	1125.3	114,751	114.8
1150	100.03	1150.3	117,301	117.3
1175	100.03	1175.4	119,851	119.9
1200	100.03	1200.4	122,401	122.4
1225	100.03	1225.4	124,951	125.0
1250	100.03	1250.4	127,501	127.5
1275	100.03	1275.4	130,051	130.1
1300	100.03	1300.4	132,601	132.6
1325	100.03	1325.4	135,151	135.2
1350	100.03	1350.4	137,701	137.7
1375	100.03	1375.4	140,251	140.3
1400	100.03	1400.4	142,801	142.8
1425	100.03	1425.4	145,351	145.4
1450	100.03	1450.4	147,901	147.9
1475	100.03	1475.4	150,451	150.5
1500	100.03	1500.5	153,001	153.0

HRT6Effective Piston Area: 166.71 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	166.71	833.6	84,997	85.0
525	166.71	875.2	89,247	89.2
550	166.71	916.9	93,497	93.5
575	166.71	958.6	97,747	97.7
600	166.71	1000.3	101,997	102.0
625	166.71	1041.9	106,246	106.2
650	166.71	1083.6	110,496	110.5
675	166.71	1125.3	114,746	114.7
700	166.71	1167.0	118,996	119.0
725	166.71	1208.6	123,246	123.2
750	166.71	1250.3	127,496	127.5
775	166.71	1292.0	131,745	131.7
800	166.71	1333.7	135,995	136.0
825	166.71	1375.4	140,245	140.2
850	166.71	1417.0	144,495	144.5
875	166.71	1458.7	148,745	148.7
900	166.71	1500.4	152,995	153.0
925	166.71	1542.1	157,245	157.2
950	166.71	1583.7	161,494	161.5
975	166.71	1625.4	165,744	165.7
1000	166.71	1667.1	169,994	170.0
1025	166.71	1708.8	174,244	174.2
1050	166.71	1750.5	178,494	178.5
1075	166.71	1792.1	182,744	182.7
1100	166.71	1833.8	186,994	187.0
1125	166.71	1875.5	191,243	191.2
1150	166.71	1917.2	195,493	195.5
1175	166.71	1958.8	199,743	199.7
1200	166.71	2000.5	203,993	204.0
1225	166.71	2042.2	208,243	208.2
1250	166.71	2083.9	212,493	212.5
1275	166.71	2125.6	216,743	216.7
1300	166.71	2167.2	220,992	221.0
1325	166.71	2208.9	225,242	225.2
1350	166.71	2250.6	229,492	229.5
1375	166.71	2292.3	233,742	233.7
1400	166.71	2333.9	237,992	238.0
1425	166.71	2375.6	242,242	242.2
1450	166.71	2417.3	246,492	246.5
1475	166.71	2459.0	250,741	250.7
1500	166.71	2500.7	254,991	255.0

HRT9Effective Piston Area: 346.70 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	346.70	1733.5	176,765	176.8
525	346.70	1820.2	185,603	185.6
550	346.70	1906.9	194,441	194.4
575	346.70	1993.5	203,280	203.3
600	346.70	2080.2	212,118	212.1
625	346.70	2166.9	220,956	221.0
650	346.70	2253.6	229,794	229.8
675	346.70	2340.2	238,633	238.6
700	346.70	2426.9	247,471	247.5
725	346.70	2513.6	256,309	256.3
750	346.70	2600.2	265,147	265.2
775	346.70	2686.9	273,986	274.0
800	346.70	2773.6	282,824	282.8
825	346.70	2860.3	291,662	291.7
850	346.70	2947.0	300,500	300.5
875	346.70	3033.6	309,339	309.3
900	346.70	3120.3	318,177	318.2
925	346.70	3207.0	327,015	327.0
950	346.70	3293.7	335,853	335.9
975	346.70	3380.3	344,692	344.7
1000	346.70	3467.0	353,530	353.5
1025	346.70	3553.7	362,368	362.4
1050	346.70	3640.3	371,206	371.2
1075	346.70	3727.0	380,045	380.1
1100	346.70	3813.7	388,883	388.9
1125	346.70	3900.4	397,721	397.7
1150	346.70	3987.1	406,559	406.6
1175	346.70	4073.7	415,398	415.4
1200	346.70	4160.4	424,236	424.2
1225	346.70	4247.1	433,074	433.1
1250	346.70	4333.8	441,912	441.9
1275	346.70	4420.4	450,751	450.8
1300	346.70	4507.1	459,589	459.6
1325	346.70	4593.8	468,427	468.4
1350	346.70	4680.4	477,265	477.3
1375	346.70	4767.1	486,104	486.1
1400	346.70	4853.8	494,942	494.9
1425	346.70	4940.5	503,780	503.8
1450	346.70	5027.2	512,618	512.6
1475	346.70	5113.8	521,457	521.5
1500	346.70	5200.5	530,295	530.3

HRT10Effective Piston Area: 426.70 cm²Open Full Table ▾

Pressure (bar)	Effective Area (cm²)	Force (kN)	Force (kg)	Force (ton)
500	426.70	2133.5	217,553	217.6
525	426.70	2240.2	228,431	228.4
550	426.70	2346.8	239,308	239.3
575	426.70	2453.5	250,186	250.2
600	426.70	2560.2	261,064	261.1
625	426.70	2666.9	271,941	271.9
650	426.70	2773.6	282,819	282.8
675	426.70	2880.2	293,697	293.7
700	426.70	2986.9	304,574	304.6
725	426.70	3093.6	315,452	315.5
750	426.70	3200.2	326,329	326.3
775	426.70	3306.9	337,207	337.2
800	426.70	3413.6	348,085	348.1
825	426.70	3520.3	358,962	359.0
850	426.70	3627.0	369,840	369.8
875	426.70	3733.6	380,718	380.7
900	426.70	3840.3	391,595	391.6
925	426.70	3947.0	402,473	402.5
950	426.70	4053.7	413,351	413.4
975	426.70	4160.3	424,228	424.2
1000	426.70	4267.0	435,106	435.1
1025	426.70	4373.7	445,984	446.0
1050	426.70	4480.4	456,861	456.9
1075	426.70	4587.0	467,739	467.7
1100	426.70	4693.7	478,617	478.6
1125	426.70	4800.4	489,494	489.5
1150	426.70	4907.1	500,372	500.4
1175	426.70	5013.7	511,250	511.3
1200	426.70	5120.4	522,127	522.1
1225	426.70	5227.1	533,005	533.0
1250	426.70	5333.8	543,882	543.9
1275	426.70	5440.4	554,760	554.8
1300	426.70	5547.1	565,638	565.6
1325	426.70	5653.8	576,515	576.5
1350	426.70	5760.4	587,393	587.4
1375	426.70	5867.1	598,271	598.3
1400	426.70	5973.8	609,148	609.2
1425	426.70	6080.5	620,026	620.0
1450	426.70	6187.2	630,904	630.9
1475	426.70	6293.8	641,781	641.8
1500	426.70	6400.5	652,659	652.7

What Do You Need Next?

Find the right model: Use the Model Selector and LTF Calculator to automatically compute the required model and pressure from your target pre-tension, stud diameter and grip length.

Check the dimensions: See the HRT Series Hydraulic Bolt Tensioning product page for each model's stud range, capacity and physical dimensions.

Get technical support: Contact our team for an assessment specific to your application.

What You Need to Know

How are the values in these tables calculated?

Force (kN) = Pressure (bar) × Effective Piston Area (cm²) × 0.01 formula, using each model's actual effective piston area. The kg and ton values are derived from this kN result (kN × 101.9716 = kg; kg / 1000 = ton).

Can the tool be used above 1500 bar?

No. 1500 bar is the nominal maximum working pressure of the HRT series, and the highest value in the tables reflects this point. Higher pressure risks equipment life and safety.

Can I download the tables as a PDF?

Yes. Use the "Download PDF" link at the top of the page to download a single technical document containing the full tables for all 6 models.

What is effective area, and why does it vary between models?

The effective piston area is the actual surface area (cm²) exposed to pressure inside the hydraulic tensioner's internal structure. Since each HRT model's body and piston dimensions differ, the force produced at the same pressure also varies from model to model.

Is there a table for an HRT model not listed here (HRT0, HRT2, HRT7, HRT8)?

This page includes full tables for the HRT3, HRT4, HRT5, HRT6, HRT9 and HRT10 models. For other models, you can send us your technical data request.

HRT Series Pressure → Force Tables

Pressure to Force: One Formula

Pressure → Force Table by Model

What Do You Need Next?

What You Need to Know

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