What distinguishes JIS 22kg railway track from S20 rail section?

What distinguishes JIS 22kg railway track from S20 rail section?

 

The primary distinctions between JIS 22kg railway track and S20 rail sections lie in their governing standards, nominal weight, and cross-sectional dimensions, which dictate their application and compatibility with accessories.

 

• While the S20 is a European profile governed by DIN 5901 with a theoretical weight of 19.80 kg/m, the JIS 22kg follows Japanese Industrial Standards with an actual weight of 22.30 kg/m.

 

• Beyond the weight difference, the JIS 22kg is a "stouter" profile, standing only 93.66 mm tall compared to the S20's taller 100.00 mm height. This makes the S20 more efficient for vertical stiffness in crane runways, while the JIS 22kg offers a wider 93.66 mm base (vs. the S20's 82.00 mm) for superior lateral stability in heavy-duty mining and shuttle systems.

 

 

Size	Rail height(mm) A	Bottom Width(mm) B	Head Width(mm) C	Web Thickness(mm) t	Weight(kg/m) *
S10	70	58	32	6	10
S14	80	70	38	9	14
S18	93	82	43	10	18.3
S20	100	82	44	10	19.8
S24	115	90	53	10	24.4
S30	108	108	60.3	12.3	30.03

 

 

Size *	Rail height(mm) A	Bottom Width(mm) B	Head Width(mm) C	Web Thickness(mm) t	Weight(kg/m) *
9kg	63.50	63.50	32.10	5.90	8.94
10kg	66.67	66.67	34.13	6.35	10.10
12kg	69.85	69.85	38.10	7.54	12.20
15kg	79.37	79.37	42.86	8.33	15.20
22kg	93.66	93.66	50.80	10.72	22.30
30kg(30A)	107.95	107.95	60.33	12.3	30.10
37kg(37A)	122.24	122.24	62.71	13.49	37.20
40kgN(40N)	140.00	122.00	64.00	14.00	40.9

 

How do Load Capacities and Usage Scenarios Vary?

 

Due to its heavier mass and wider head, the JIS 22kg load capacity is rated higher, safely handling axle loads of up to 4.5 to 5 tons, compared to the 3.5-ton limit of the S20. Consequently, JIS 22kg is the preferred standard for heavy-duty industrial railways and major mining projects in East Asia and Southeast Asia. The S20 is more prevalent in European-designed automated warehouses and light industrial workshops.

 

 

• If an engineering project requires maximum stability against sideways tipping, the 93.66 mm base of the JIS 22kg is superior;

 

• if the project requires a lighter, more rigid beam for a crane, the S20 is the more technical choice.

 

FAQ

 

Q: Can I replace S20 with JIS 22kg on an existing crane runway?

A: No, not without changing the fastening system and adjusting the height. The JIS 22kg is 6.34 mm shorter than the S20, which would create a dangerous "step" in the track and cause your 30.00 mm head matched wheels to run incorrectly on the wider JIS head.

 

Q: Is the JIS 22kg rail weight 22kg exactly?

A: No, the name "22kg" is a nominal designation. The actual JIS 22kg railway track weight is 22.30 kg/m.

 

Q: Why is S20 more common in automated warehouses despite having a lower load limit?

A: Precision and height. The 100.00 mm height of the S20 provides the vertical stiffness needed for high-speed shuttle cars, and its lighter 19.80 kg/m weight reduces the structural load on the racking systems where the rails are often mounted.

 

Q: Does GNEE RAIL provide JIS 22kg with custom drilling?

A: Yes, we provide both JIS E1103 and DIN 5901 standards. We can CNC-drill the JIS 22kg web to your specific hole pattern, ensuring that the RAIL MATERIAL STRENGTH is maintained while allowing for rapid onsite assembly with JIS-standard fishplates.

 

Q: Which rail is better for corrosive underground mining?

A: The JIS 22kg has a thicker 10.70 mm web, which provides a larger "corrosion allowance" before the rail loses its structural integrity compared to the 7.00 mm web of the S20. However, both should be ordered in 55Q or 50Mn grade to maximize longevity in wet mine galleries.

 

Q: How does the price per meter compare between JIS 22kg and S20?

A: The JIS 22kg is generally more expensive per meter because it contains 12% more steel per unit of length. While the price per ton may be similar, the 22.30 kg/m mass of the JIS rail means you will buy more total tonnage for the same track distance compared to the 19.80 kg/m S20.

 

Get a Quote in 24 Hours

 

GNEE RAIL provides JIS 22kg and DIN 5901 S20 rails, full-size crane rails (QU, A series), and international standards like ASCE directly from our manufacturing facility. We supply all matched JIS and S20 rail joint bars, high-tensile bolts, and rail clips to ensure your track system is fully compatible. Our CNC workshop handles precision cutting and custom drilling to your exact rail drawing specifications. Send your technical requirements to GNEE RAIL now to receive a detailed quote and CAD support for your upcoming project.