Analogue Track Gauge

Product Description
Rail Gauge (or Track Gauge), a specialized measuring instrument used to measure the gauge (distance between two rails) and level (horizontal alignment) of railway tracks. It is an essential tool for railway construction and maintenance, enabling accurate measurements of track parameters such as gauge width, superelevation, and cross-level. Widely applied in mainline railways, regional railways, subways, urban rail transit systems, mining operations, steel plants, and other track-based infrastructure for maintenance and inspection purposes.
Measurement of track gauge:
When measuring, securely place the gauge's probes against the inner sides of both rails, positioned 16 mm below the top surface of the rail head. Slowly slide the gauge forward or backward along the track, gently actuating the moving probe to observe the minimum reading. Repeat minor adjustments to confirm the lowest value, and record this minimum reading as the definitive measurement. For example, since the standard gauge for most railways is 1435 mm, calculate the deviation by subtracting the measured value from 1435 mm (e.g., at specific locations like the #9 switch toe, where the reference gauge is 1450 mm, compare to 1450 mm instead). A positive deviation (wider than standard) is denoted as "+", while a negative deviation (narrower than standard) is denoted as "-". The "+" symbol may be omitted during data recording for simplicity.
Superelevation Measurement
Identify the reference rail (for clarity in this explanation, assume it is the lower rail) and position the gauge such that its rear side aligns with the reference rail. Align the level compass needle with zero. Check if the spirit level bubble is centered within the graduation Lines. If centered, the cross-level of the opposite rail (upper rail) is zero. If the bubble deviates toward the upper rail, the cross-level is positive ("+"); if toward the lower rail, it is negative ("-"). Adjust the graduated compass dial until the bubble is centered, then record the reading. To minimize parallax error, ensure your line of sight is perpendicular to the scale when reading the value.
Usage Precautions
· Handle the instrument with care during use to avoid impacts or collisions.
· When the instrument is not in use, store it in a secure location away from heat sources and humid environments.

Hengtairail Equipment Co., Ltd (hereinafter referred to as “Hengtairail”) was established by Mr. Wei, in 1999. He was as a vehicle engineer in the China Railway Chengdu Bureau. A professional engineer team and high-efficiency sales team have been built at present.

Hengtairail is certified and operating to the ISO9001:2015 management system. Products meet technical requirements China Railway Test & Certification Centre (CRCC), Association of American Railroads (AAR), International Union of Railways (UIC), etc.

Hengtairail is a global supplier of rail vehicle components & systems. Including casting, forging, and machining products.

Specific products include:

· Wheelset: axle, wheel

· Bearing & axle box

· Spring & vibration control system: steel spring, rubber spring, air spring, leveling valve, shock absorber, and other truck components

· Coupler & draft gear device

· Braking system that meets UIC & AAR requirements

· Passenger train facilities & equipment: window, handrail, luggage rack, seat, HVAC system, toilet, gangway, plug door, interior products

· Locomotive parts

Based on the cooperation of many reliable manufacturers, Hengtairail has lots of advantages, such as flexible delivery time & payment terms, convenient after-sales service, etc. Under those favorable conditions, clients’ procurement costs and risks can be controlled effectively. It’s beneficial for clients to purchase transnational.

After more than 20 years of development, relying on high-quality products and professional services, Hengtairail establishes a complete supply chain system and long-term good business relationships with clients who come from more than 30 countries and regions.

Safety is the forever theme of public transport. Fast and big capacity of passengers is the particularities of rail transport. That makes us have a higher requirement for safety. Therefore, Hengtairail will continue to carry out the manufacturing process and quality guarantee schedule strictly, offer excellent products to meet clients' needs, and become a comprehensive supplier of rail vehicle components with core competitiveness.