The Federal single-axle weight limit on the Interstate System is 20,000 pounds. These lift axles or drop axles are included in the axle weight calculations, and of course, the axle weight distribution differs based on whether the axles are dropped or raised. Texas will permit a single axle limit of 25,000 lbs on a single axle so long as the manufacturer's ratings (GAWR) allow it. The techs can adjust the load on the tag axle to redistribute weight but, whatever they do, it either puts the front axle over weight or the drive axle is overloaded. The maximum weight limit in China based on new regulations established in 2016 is 36,000 pounds for two-axle trucks, 50,000 pounds for three-axle trucks, 62,000 pounds for double-steering axles and four-axle trucks, 72,000 pounds for four-axle combination vehicles, 86,000 pounds for five-axle combination vehicles and 98,000 pounds for six-axle combination vehicles. a 3 axle articulated which exceeded the plated weights on the 1st axle, 2nd axle and gross weight Tandem Weight - This is the maximum amount of weight allowed on your tandem axles when they are between 40" and 60" from one another. Alberta Canada Axle Weight Limits | Regulations & Requirements They limits vary state to state or province, also goes by lowest rated component be it tire or axle. The maximum authorised weight of 32,000kg therefore applies. This formula determine the maximum legal weight on any group of two or more consecutive axles. Axle groups with an axle spacing over 10 feet mounted to a common frame must be steerable. PDF Axle weight limits by State — axle weight limits by state 20,000 lbs. Averages around 44,000 lbs on a tandem. Axle Logistics Mc Number : Detailed Login Instructions ...PDF Michigan Weight Axle Load Limits - livingstonroads.org As shown in the picture below, to assure that the weight is distributed correctly inside the trailer, it needs to be spread on all three types of axles while not exceeding the max gross weight limit of 80,000 lbs. Steer, Drive, Single, Tandem, Tridem Axle Load Legal And Permitted Weight. A vehicle could be overloaded on all . - 3,500-lb Axles: 2-3/8 inch diameter. - 1,000-lb - 2,000-lb Axles: 1-1/2 inch - 1-3/4 inch diameter. Exceeding the permissible axle weight, gross vehicle weight, or any other weight rating limits can cause tire overheating resulting in permanent deformation or catastrophic failure. If you could get 48 feet between the center of the first drive axle and the center of the last trailer tandem axle, the formula would calculate the weight as . The maximum weight on an individual axle of a tandem axle group is sixteen thousand (16,000) pounds for each axle. • 33,500 pounds on a single drive axle • 62,000 pounds on a tandem axle • 52,000 pounds on a tandem rear drive axle Because these weight limits are higher than those in place for standard commercial vehicles, some bridges without standard weight limit postings will now need EV-specific weight restrictions. Triple axle group - 42,000 pounds 5. 34,000 pounds on a tandem, and. MACK E-6 , Feb 17, 2008 MACK E-6 , Feb 17, 2008 Allowable weight depends on the number of axles a vehicle has and the distance between those axles. Quad axle group - 50,000 pounds 5. China. B. on each axle - total of 36,000 lbs. (per CVC Sec. 1 Length limit may only be increased with a permit if the vehicle combination complies with the permit requirements both with and without a load. 40t for transport of go ods The single axle, tandem axle, and bridge formula limits set forth in subsection (a) shall not apply to the operation on Interstate Route 68 in Garrett and Allegany Counties, Maryland, of any specialized vehicle equipped with a steering axle and a tridem axle and used for hauling coal, logs, and pulpwood if such vehicle is of a type of vehicle as was operating in such counties on United States . (12) Licensed by state Motor Road service of Ukraine 5 axle + limit is 46 t. (13) 6 x Tractor Wheel Base (in m) capped at 26 tonnes. The maximum legal axle weight allowed on a highway:-Single Axle 9 100 kg, any one axle of a Tridem or Tandem Axle Group 9 100 kg. per 5-axle rig are: 12,000 lbs. This is only a part of the story. General Information Maximum load . Oversize Weigh. This will also reduce the allowable GVW. 34,000 lbs drive and tandem axles. Permissible Weight Table. The first image is a readout from an actual scale ticket at a truckstop (click to enlarge). 38t: generally for transport of goods by road. middle tandems (tractor drive axles) Mexico's axle weight limits are 11 tonnes (24,255 pounds) on single drive axles, 10 tonnes (3) On any two or more consecutive axles, the maximum weight as determined by application of the formula provided in division (C) of this section. Tandem axle group - 34,000 pounds 5. So if a state/province allows 18,000 your axle is rated for 14,600 and tires are rated for 15,600 you are limited by the 14,600 rated axle. On non-Interstate highways, maximum weight limits are graduated per the number of axles a vehicle has: two-axle vehicles are limited to 34,000 lbs., three-axle vehicles are limited to 54,000 lbs., four-axle vehicles (and single-unit five axle vehicles) are limited to 69,000 lbs., five or more axles are limited to 80,000 lbs., and a combination . When the interaxle spacing is less than the minimum specified in regulations, the combined axle weight for the combination is reduced by 500 kg for every 0.1 metre or portion thereof. E. See Table II F. See Note 2 below. (12) Licensed by state Motor Road service of Ukraine 5 axle + limit is 46 t. (13) 6 x Tractor Wheel Base (in m) capped at 26 tonnes. Country Weight per non-drive axles Weight per drive axle Tractor 2 . In the United States, your axle weight limits are: 80,000 lbs total gross weight. You can think of the GAWR as a weight limit for each of your vehicle's axles -- a weight limit determined by the automaker. Do spread the the higher gravel out a bit to lessen the psi weight. The drive axles, often on the tractor but occasionally fitted to the rear of heavy-duty trailer setups, can support 34,000 lbs., as long as they are in a tandem setup (two axles no more than five feet apart). The legal weight limits for each set of axles is: Steer axle varies by state. Load limits of axles. The maximum amount of weight per axle is set at 20,000 lbs. Maximum individual axle weight allowed under permit is 20,000 pounds per axle. Quote From The CDL Manual: Weight. 0. crb, Sep 5, 2017. These are typically described as quad-axle vehicles, or, for combination vehicles, semi tractor-trailers. You are responsible for familiarity with the complete weight laws found in the Michigan Vehicle Code, Section 257.722. USA. Legal tandem weight on tractor semi-trailer combinations on state highways is 40,680 pounds as provided in O.C.G.A. W=500 [(LN/(N-1)) +12N+36], Where: The max gross weight of a shipment with a tractor trailer combination is 80,000 lbs. Non-Interstate limits are typically lower and vary. A permit is typically required if vehicle gross weight exceeds 80,000 pounds. Ontario vehicle weight and dimension limits are prescribed in the Highway Traffic Act (HTA) and its various regulations which are administered by the Ministry of Transportation, Ontario (MTO). In the discussion I heard that there was a 20,000 lbs per axle weight limit on interstates. From what I've figured out the psi of the gravel on the drive is on average less than 5 psi. The weight is carefully calculated to allow the vehicles to stop and corner safely, considering the load and emergencies. Maximum axle weights allowed when gross weight allowed is limited to 80,000 lbs. 35550. Tandem axles: Weight limit 34,000 pounds. (b) The gross weight limit for any one wheel, or wheels, shall not apply to vehicles with loads of livestock. Maximum axle loads are 10t for a single axle and 11.5t for a driven axle, 11.5t to 19t depending on axle spacing for a tandem axle and 11t to 24t for a tridem axle. 1. When I checked on a base plate the rating was 33,000 lbs. Must have road friendly suspension. Axle weight limits prevent pavement and bridge damage due to high concentrations of weight distributed over a small area. Until 1982, Federal law set only upper limits (or ceilings) on Interstate System weight limits. Subtitle 1 - Size, Weight, and Load Section 24-108 - Load limits of axles. Up to 80,000 pounds of total weight on a 5-axle combination, depending upon axle spacing. Axle Weight Limits by State. However, the single-or-tandem-axle weight limits supersede the Bridge Formula limits for all axles not more than 96 inches apart. Each part of the combination must have . A vehicle is overloaded if it exceeds the plated weight limits. The gross limit in this example does not exceed 80,000 lbs, but the trailer tandem axles exceeds the 34,000 lbs gross weight limit. 12.000 on the steer axle, 34000 on the drive axles and 34.000 on the trailer tandems. (2) EMERGENCY VEHICLE DEFINED. Should you have questions about weight limits, please call our hotline at (800) 682-4682. See Table II C. See Table II D. Gross weight of 72,000 lbs., provided the weight shall not exceed 20,000 lbs on a single axle or 34,000 lbs on a tandem. scribe axle weight limits as a function of axle configura-tion and number of tires, thereby establishing an effective limit on tire loads. A. XLE (12 T M. AX) (11) Switzerland enforce a minimum drive axle load limit of 25% of the Gross Train Weight to ensure traction. The maximum weight a single axle can pull is 20,000 pounds. The maximum gross weight of any vehicle falling into these categories is 24 tons, or 48,000 pounds. Changing Michigan's current laws would increase traffic weight limit caps on the second trailer of A and C train double trailer combinations were removed and replaced by the requirement that the weight of the tractor drive axles + the weight of the lead trailer axles must be greater than the weight of the second trailer. List of Commercial Truck Axle Weight Limits by State March 17, 2020 The reason that axle legal weights are significant for commercial trucks is that both state and federal authorities are concerned about the safety of truckers, other motorists, and the roads they drive on as well. A vehicle may not exceed a single axle weight of 20,000 pounds or a tandem axle weight of 34,000 pounds. They are scaled as a set and the weight limits you'll be shooting for are as shown in figure 3 to the left. The difference axle weight between adjacent axles 1 000 kg maximum; the gross weight on the steering axle of an all-wheel-drive three axle truck is 7 500 kg maximum. 20,000 lbs steering axle. 20,000 pounds on a single axle. 22,500 pounds on a single drive axle of a 2-axle tow . In fact, BC regulations require that the steering axles on tri-drive tractors carry a minimum of 25% of the drive-axle weight when the truck is loaded and Alberta permits require that the steer axles carry a minimum of 27% of the drive-axle weight at all times. Steer Axle - 15,000 (With minimum spacing of 15′ steer to first drive axle). Every state has limits for a max single axle and each axle group weights. The table may be applied to inner axle groups such as the drive axles and the trailer or trailers, or the entire combination of axles from the steering axle of the power unit to the last trailing axle of the trailer. The salesman tells me that it is a 33,000 lbs gvw truck. § 24-108. Typically, drive axles are encased within an axle housing, which offers the part more protection and allows it to operate much more efficiently.They can be found on both front or rear wheel drive vehicles and are necessary to operate both the front axle and the rear axle. The table below has each state's maximum allowed weight for gross vehicle weight, single axle weight, and tandem axle weight. In addition to Bridge Formula weight limits, Federal law states that single axles are limited to 20,000 pounds, and axles spaced more than 40 inches and not more than 96 inches apart (tandem axles) are limited to 34,000 pounds. Axle Weight - The axle weight limitation applies to the maximum amount of weight that can rest on each axel of your truck. Sep 13, 2008. Weight. A two-axle rigid motor vehicle with a 2.5-metre axle spread would be limited to 2.5 x 6,000 = 15,000kg. on 11 Axles 154,000 Pounds vs. 160,000 Pounds on the Highway One multi-axle Michigan truck is equivalent to two national standard trucks, but the axle loadings are much less. With a few exceptions in the US it's 80,000 pounds. (a) The gross weight on any one axle shall not exceed 20,000 pounds, and the gross weight upon any one wheel, or wheels, supporting one end of an axle, shall not exceed 10,500 pounds. Weight 4. Besides the steer axle, the drive axle and the trailer tandem axle are scaled as a set. States also have as mentioned axle weight limits. With the right configuration, it is possible to be over gross weight but not over on any axles, such as with a 40k trailer axle limit, 34k drive, and 20k steer. States, however, often have different limits. #1. 34,000 for the drive axles. The 24-ton axle weight limit is for vehicles with more than a tandem axle rear drive and one pusher or tag axle. Dumping on the drive should be alright. Weight. Many states have no law, but give the 400 via a "no enforcement" policy. Legal axle weight limit is 20,340 pounds. There is no specific mass limit for the steering axles, but other vehicle design constraints result in an effec - tive mass limit of 8 tonnes. Similarly, HTA Regulation 413/05 - Vehicle Weights and Dimensions General Rule. 34,000 for the trailer tandems. Do not use replacement tires with lower load carrying capacities than the tires that were original equipment on the vehicle because this will lower the vehicle's . The legal weight limits for each set of axles is: Steer axle varies by state. SAFER Web - Company Snapshot AXLE LOGISTICS INC great safer.fmcsa.dot.gov. The weight of the second trailer must not exceed the weight of the tractor drive axle(s) plus the weight of the axle(s) on the first semitrailer. How much weight can a Single Axle semi truck Pull? I am wonder what the weight limits for a d unit is to be legal in all states. Legal tandem weight limit on all trucks is 37,340 pounds, i.e., any two or more axles within 216 inches on the unit, not including steering axle. Tag Axle Weight Drive Axle Weight Front Axle Weight Tare Weight Door Count 38 MCI 2000 D4500 45 High 6000 102 136 48,000 12,000 22,500 15,650 36,500 1 39 MCI 2003 D4500 45 High 6050 102 136 48,000 12,000 22,500 16,000 37,000 1 46 NABI 1998 416.09.0002 40 High 3000 102 127 40,000 N/A 26,000 14,600 28,700 2 (36,287 kg) but that weight must be distributed evenly over several axles or axle groups. Gross - 80,000 pounds maximum. The formula may be applied to inner axle groups such as the drive axles and the trailer or trailers, or the entire combination of axles from the steering axle or the power unit to the last trailing axle of the trailer. 35550) 20,000 pounds maximum on a steering axle. For more information and exceptions to the above weight limits: Maximum gross weight exceptions; Additional resources and information is available at the following links. While the bridge formula allows a max of 17,000 per axle, a semi rig has 2 drive axles and 2 trailer axles. Requests for more than 15,000 pounds on steer axle have to go to bridge engineering for approval, taking an extra day or two. They are scaled as a set and the weight limits you'll be shooting for are as shown in figure 3 to the left. They also protect the equipment from damage caused by overloading. The steering axle weight for a truck tractor is capped at 6,000 kg. The drive axle is a crucial car component that extends out from the differential and into the tire. 34,000 for the drive axles. Steers are not necessarily limited to 12k. You can also tell the weight capacity of the axle by measuring the diameter of the axle. Dec 1, 2009. Single Axle: 20,000 pounds in general. 26t is only allowed if the drive axle is equipped with air suspension; otherwise the weight limit is 25t 2. Rhode Island, Kentucky, and California have no exemption at all. A truck may be designed to carry 80,000 lb. Axle weight limits by State Axle Weight Limits Calculator By State Steer, Drive . front axle (tractor steer axle) 34,000 lbs. (per CVC Sec. For more information regarding Maximum Permit Weights on axle groups, view California Weight Charts. Bthombs, have him back up to the drive, and keep the rear axle off the drive(10k to 15k lbs axle weight). Twenty thousand (20,000) pounds per single axle, with axles less than forty-two (42) inches apart to be considered as a single axle. Must have road friendly suspension. against an emergency vehicle a vehicle weight limit (up to a maximum gross vehicle weight of 86,000 pounds) of less than— (A) 24,000 pounds on a single steering axle; (B) 33,500 pounds on a single drive axle; (C) 62,000 pounds on a tandem axle; or (D) 52,000 pounds on a tandem rear drive steer axle. a single axle in texas can carry 25,000 pounds, but a tandem (two axles in a group) can only carry 46,000 pounds, so 23,000 per individual axle in that tandem. In addition to Bridge Formula weight limits, Federal law states that single axles are limited to 20,000 pounds, and axles spaced more than 40 inches and not more than . The maximum amount of . AXLE LOGISTICS INC : DBA Name: Physical Address: 6513 KELLS COURT CLARKSVILLE, MD 21029 Phone: (443) 668-2771 : Mailing Address: 6513 KELLS COURT CLARKSVILLE, MD 21029 USDOT Number: 2436824 : State Carrier ID Number: MC/MX/FF Number(s): MC-840303 : DUNS Number:-- Power Units: 1 : Drivers: 1 : MCS-150 Form Date: 12/20 . Therefore, some vehicles cannot be loaded to the maximum allowable gross weight because the tandem axle or single axle weights would exceed legal weight limits. allowed a maximum weight of 44 tonnes. As you pull onto the scale make sure that your truck is in position 1.Position 1: Your steer axle should be positioned on platform 1 and your drive axle on platform 2.Position 2: The trailer axle of your first trailer would be on platform 1, front axle . Concessional weight limits, which increase allowable weight to accredited operators can see (for example) a quad weighing up to 149 t (147 long tons; 164 short tons). #2 Axle and Axle Group Limits. * Vehicles that comply with Front Under-run Protection Systems (FUPS) requirements, cabin strength requirements, and the Australian Design Rule (ADR) 80/01 are permitted an additional 500kg on a single steer axle and the gross mass limit. 160,000 lbs. A tandem axle has a maximum weight limit of 34,000 pounds, and the gross vehicle weight limit is 80,000 pounds. Speed limits Front and rear axles have individual gross axle weight ratings [source: Ford Motor Company]. Single-Axle Weight—The total weight on one or more axles whose centers are spaced not more than 40 inches apart. Thirty-four thousand (34,000) pounds on two (2) axles in tandem arrangement which are spaced forty-two (42) inches or more apart and less than ninety-six (96) inches apart. The maximum weight limits on both designated and non-designated streets and highways are: 20,000 pounds on a single axle. Axles in the axle groups are almost always given a lower weight per axle than if they were single axles, e.g. Parts VII and VIII of the Act are included as Chapters 6 of this guide book. Gross Weight - Maximum allowable weight for trucks on U.S. Interstate highways is 80,000lbs, including tractor weight, chassis and container weight,and cargo weight. on 10 Axles One Michigan Multi-axle Truck Combination 154,000 lbs. Drive axles: Weight limit 34,000 pounds. Every open road in the US is regulated by constraints in regards to oversize/overweight commercial trucks both by federal and state laws, even down to municipal in some cases. How much weight can you have on your drive axle? L is the distance in feet between outer axles of any two cosecutive axle combinations, and N is the number of axles. From what I can find on the internet I think it is 32,000 lbs, 20,000 lbs on the drive axle and 12,000 lbs on the steerining axle. A. Introduction. Technically speaking, legal axle weight in most areas is 34,000 pounds, but a little work with your calculator will quickly reveal that 34,000 + 34,000 + 12,500 equals 80,500 pounds, which is 500 pounds over the maximum gross weight. A vehicle's axles should never be loaded beyond the manufacturer's listed GAWR. (11) Switzerland enforce a minimum drive axle load limit of 25% of the Gross Train Weight to ensure traction. Gross Weight Limit. Single axle - 20,000 pounds. The Federal gross weight limit on the Interstate System is 80,000 pounds unless the Bridge Formula dictates a lower weight limit. For operation above 40000kg, the drive axle (s) must not exceed 10500kg and have road friendly suspension OR have a maximum axle weight not exceeding 8500kg. This table provides a guide to determine the maximum legal weight on any group of two or more consecutive axles. The first image is a readout from an actual scale ticket at a truckstop (click to enlarge). (b) Limits.- its axles, on its gross weight and on its train weight. This weight limit is increased by 5% for vehicles registered within the EU (i.e. A safe axle weight is 12,500 pounds on the front-steer axle and 33,000 on the drive- and tandem- (trailer) axles. the following is a simple guide for maximum axle load limits that is not intended for legal purposes. (a) How distance between coupled axles to be measured.- For purposes of this section, the distance between coupled axles (commonly known as "tandem" axles) shall be measured horizontally between their centerlines. S. INGLE . Non-Interstate Route Exemptions Axle Weight - Allowable gross weight on a single or set of axles is regulated by individual states. 32-6-26 (j). An example is the state of Texas. Weight per non-drive axle Weight per drive axle Lorry 2 axles Lorry 3 axles Road Train 4 axles Road Train 5 axles and + Articulated Vehicle 5 axles and + Albania 10 11.5 (3) 18 26 (2) 36 40 44 Armenia 10 10 18 22 36 (19) 36 (19) 36 (19) Austria 10 11.5 18 26 36 40 / 44 (10) 40 / 44 (10) Azerbaijan 10 10 18 24 36 42 44 As with a split-axle trailer, weighing an oversized load will also require you to move your truck during the weighing process. You can be over any axle (not just steer), and/or over gross, with the 400 or 550 being the limit for gross or axle. A four-axle rigid motor vehicle with a 6.5-metre axle spread would be limited to 6.5 x 5,000 = 32,500kg which is above the maximum authorised weight. Each of these would be separate offences, e.g. Single Axle: 20,000 pounds in general. The picture above shows a Mack 6×4 rigid truck, which has had 2 Pusher axles added, to create a 5-axle rigid. 80,000 pounds. Gross Vehicle Weight Limits: See Weight Calculator: Cannot exceed the sum of the maximum legal axle weights to a maximum of 53,500 kg. This is not a steer axle exemption, it is a total weight exemption. And limited to a maximum wheel weight of eight hundred (800) pounds per inch width of the tire measured between the flanges of the rim, or a maximum axle weight of eighteen thousand (18,000) pounds. All this to keep lateral friction utilization down to acceptable levels. If a tri-drive prime mover is utilised, along with tri-axle dollies, weights can reach nearly 170 t (167 long tons; 187 short tons). 34,000 for the trailer tandems. Max Permit Limit - This is the max weight allowed on any axle configuration with a permit. * This requirement does not thapply to semitrailers manufactured before September 9 , 1986. the steering axle weight limit on straight trucks was increased to 7250 kg. The federal vehicle weight limits are 80,000 pounds gross vehicle weight, 20,000 pounds on a single axle, and 34,000 pounds on a tandem axle group. 22,500 pounds on a single drive axle of a 2-axle tow . For an overweight permit, your registration must be prorated for 90,000 for Oklahoma, or for at least the amount of gross weight you need The truck scales measure double axles as a single unit. Here is a list that will show the axle weight capacity based on the axle diameter: Typical Axle Diameters Based on Axle Capacity. In the formula, Weight equals 500 [(LN divided by N-1) + 12N+36]. For more information regarding Maximum Permit Weights on axle groups, view California Weight Charts. How much weight can a semi axle carry? Hope this helps a bit, Will . 35550) 20,000 pounds maximum on a steering axle. The driver could try and reposition the load to move more weight from the rear trailer axles to the drive axles. Axle groups with an axle spacing over 10 feet mounted to a common frame must be steerable. These regulations can prohibit the effective use of super single tires in Mexico which may be permitted in Texas. For purposes of division (B)(3) of this section, the maximum gross weight on any two or more consecutive axles shall be determined by application of the following formula: W = 500[(LN/N-1) + 12N + 36]. Notes: 1. Thus, the max is 34,000.