NLB-500 portable bolt wrench with novel design, compact structure, small volume, light weight, strong maneuverability, hand the two levels of shock absorption, hand-held portable, convenient, it's especially suitable for rail shortages, tunnels, Bridges and other large and medium-sized machinery can't work situation.
NLB-500 portable bolt wrench is a high performance tools with two stroke gasoline engine. It is one of the lightest of impact wrench(the weight is 18kg), can produce a large torque with small engine power. Its balance is good, can place vertically, the operating switch is located in the operator conveniently accessible, within the scope of the operation more convenient. It can be easily carried to any working site, such as rain forests, the mountains or desert, as well as those without electric power facilities or air compressor, generator in remote areas. It can be used in the largest M32mm bolt, the most suitable for use in a sleeper bolt tightness, and other aspects of bolt tightness.
| Petrol engine | 2 stroke engine |
| Evolutions | 11000r/min |
| Working rate | 1.42kw |
| Spindle speeds | 800r/min |
| Tensional moment | ≥500N.m |
| Net weight | 18kg |
| Overall size | 830×280×380mm |
 Assessed Supplier |  ISO9001 |
CRCC Cerfifite |
 Pakistan |  Brazil |
 Poland |  Thailand |
Our product has exported to above 30 countries and regions in the last 3 years. Our good quality, reasonable price and perfect after-sales service have won the customers' attention. Warmly weclome you visit us and obtain the chance to cooperate.
Q1:Who I am ?
A1:This is Miley Wang ,sale manager of the factory.
Q2:What is the Warranty about your product?
A2: 1 year for warranty .Consumable parts are available.
Q3:How is your quality?
A3: To guarantee top quality,best material are used.Besides, The engine is imported from abroad. You are highly welcome to visit our factory.
Q4:What we do?
A4:JINZHOU TIEGONG RAILWAY MAINTENANCE MACHINERY CO.,LTD is a professional factory producing small type railway maintenance machine. Such as Cutting machine ,Grinding machine, Tamping machine etc.
Q5: Why choose us?
A5:Top quality , competitive price ,plenty stock And Excellent Service.Our factory has more than 400 type products,24 years producing experience. Most of the pictures on Other suppliers’ website were stolen from our website.
Q6:How can I trust you?
A6: We have been Gold supplier from Alibaba for 8years,15years of overseas trading experience .Our reputation among customers and their satisfaction are the main reasons for our success.
Q7:What service you can provide?
A7: Installation video And user manual offered. For big quantity order , we can dispatch our engineer foroversea door-to-door service
Q8:What is the delivery condition and the payment?
A8: various methods of payment are acceptable.T/T is the commonly used way. Shipment will be arranged within 15days .We will inform you if short stock.
Q9:Your company is manufacturer or dealer?
A9: We are professional of railway maintenance equipment manufacturer. We have more than 400 types products,such as Rail Grinder, Rail Cutter, Rail Tamper, Rail Tenser, Rail Adjustor and so on.
Petrol engine： 2 stroke engine
Evolutions： 11000r/min
Work rate： 1.42kw
Spindle speeds： 800r/min
Tensional moment： ≥500N.m
Net weight： 18kg
Overall size： 830×280×380mm
