LTP 61 Shut-off Nutrunner - Atlas Copco

LTP 61 Shut-off Nutrunner 

Not only accurate, but also very fast

2 

How important is accurate 

tightening for your customers? 

Some joints are more critical than others. If you need 

a higher level of accuracy in your work, take a look at 

Atlas Copco’s shut-off nutrunners. 

They have become standard pieces of equipment 

at truck manufacturers such as Scania and Volvo. 

And are becoming more and more common in 

service workshops. Why? 

The same torque time after time 

A shut-off nutrunner is a reliable tool. You decide 

what torque you want – anything from 60 - 4 000 Nm 

depending on the model – and that’s what you get. 

No more, no less. Even in soft joints. 

And as the name suggests, it shuts off at the 

torque you have selected. So you get the same accurate 

result time after time – regardless of the operator 

and their level of experience. 

A clear shut-off signal tells operators when the 

tightening cycle is fi nished. Not only does this 

ensure high accuracy, but it also boosts productivity 

because the operator can immediately move on to 

the next bolt without having to spend time checking 

to see if the bolt needs tightening a little more. 

First the bad news 

A shut-off nutrunner gives you reliable tightening 

because of the way it builds up torque in a smooth, 

controlled and continuous way. 

This produces excellent quality in the tightening 

phase. However, with a standard shut-off nutrunner,

this controlled action slows things down during the 

rundown phase. 

Now for the good news 

Ever changed a wheel? First you spin the wrench, 

then tighten slowly with both hands. Two-speed 

tightening. That’s what you get with the LTP 61 

– the market’s only nutrunner with two motors. 

One for rundown. One for tightening. 

If you want to know how this can boost 

productivity, turn the page. 

Adjustable torque range 

The Multi-Torque Selector allows you 

to preset four different torque levels 

per tool. 

3

4 

How important is productivity 

for your company? 

With the LTP 61, you don’t have to compromise: you 

get highly accurate tightening and high productivity. 

The secret is two motors. One high speed motor for 

fast rundown. And one high torque motor for reliable 

tightening. 

Ten times faster rundown 

A conventional, mid-size, shut-off nutrunner 

works at around 20 rpm, during both rundown 

and tightening. A mid-range LTP 61 runs down at 

210 rpm – that’s 10 times faster. 

If you have a large number of nuts to tighten, 

the LTP 61 will save you a considerable amount of 

time, boosting the productivity of your company. 

Chances are, it will pay for itself within months. 

The fastest tool on the market 

just got faster 

Twin motors might sound simple. But you won’t 

fi nd another nutrunner like the LTP 61 on the 

market. 

Its predecessor, the LTP 51, has been winning 

over fans for over twenty years. In some industries, 

such as truck and bus manufacturing, it has 

become an accepted standard.

The new LTP 61 is as accurate as its predecessor, 

but it is faster. Twice as fast in rundown. 

And yet the new range is only marginally heavier 

than the existing one. 

When we say that Atlas Copco stands for 

“innovation, commitment and interaction” 

we really mean it. 

LTP 61 

LTP 51 

Single-motor 

Time 

Run-down speed is up to ten times higher compared 

with a single-motor nutrunner. 

5

6 

How important is 

ergonomics at your 

workplace? 

Shut-off nutrunners are quite in operations and vibration 

levels are low. Operators who progress from impact 

wrenches really appreciate the difference. 

Very quiet 

But how quiet is the LTP 61? A shut-off nutrunner 

builds up torque continuously, without interruption. 

In other words, there is no noise generated by the 

actual process. 

Sound levels are also kept low because all 

exhaust air is piped through the handle into a hose, 

minimizing noise from the pneumatic system. 

Low vibration levels 

The LTP 61 has low vibration level because torque is 

transferred continuously. Compare this to an impact 

wrench in which torque is produced by a rotating 

metal hammer slamming into the output shaft. 

Minimize strain on wrists and arms 

Wrist and arm strain is kept to a minimum with shutoff 

nutrunners because the reaction force is handled 

by a torque-reaction bar. Our unique, innovative reaction 

bars are easy to use to keep productivity levels 

high.

Single-handed operation 

The LTP 61 is light, compact and well-balanced and 

so can be used with just one hand. The rubber pistol 

grip has been ergonomically optimized for maximum 

operator comfort. 

Increasing output at Volvo Trucks 

“With output being ramped up every year, 

productivity is getting more and more 

important,” says Dennis Johansson, Process 

Engineer at Volvo Trucks in southern Sweden. 

Volvo Trucks is already using more than 

200 LTP 51 shut-off nutrunners on axle and 

chassis assembly lines. “The Atlas Copco 

machines are reliable and they give us the 

accurate torque that we need,” says Dennis. 

Perfect for long run-downs 

Producing over 26,000 units every year, the 

need to shave off a few seconds here, a 

few seconds there is a pressing matter. 

“The LTP 61 is that much faster, ”says 

Dennis, “so it’s perfect for long run-downs. 

We expect to see more LTP 61s turning 

up on the production lines in the near 

future.” 

7

8 

How many tools do 

you really need in your 

workshop? 

A shut-off nutrunner is a sophisticated tool. But for 

many workshops it has not been economically viable 

to own an advanced wrench that performs just one 

dedicated task. However, with three simple accessories, 

you can use one LTP 61 for dozens of different jobs. 

And that means a sophisticated tool has now become 

a very economical one too. 

Multi-Torque Selector 

Transform one nutrunner into four: the Multi-Torque 

Selector allows you to preset four different torque 

levels per tool. Order ready-mounted or as an accessory 

to existing LTP 51 and 61 nutrunners. 

Multi-Point Reaction Bar 

In many workshops, an application that requires a 

different torque also requires a different reaction 

point. The Multi-Point Reaction Bar features a sliding 

bracket that gives you a number of different reaction 

points. 

S-Bar – straight out of the box 

A blank reaction bar has to be bent, cut or welded 

– an extra “to do”. The geometry of the S-Bar has 

been optimized to provide a maximum number of 

reaction points. This means you’ll be able to use 

the S-Bar in about 70-80 percent of all applications 

straight out of the box.

From 60-4 000 Nm 

With a range consisting of 11 different tool sizes, 

there is an LTP 61 to suit all kinds of applications. 

The smallest model weighs just 2.6 kg and delivers 

60 Nm, while the largest version supplies 4 000 Nm. 

9

10 

LTP 61 – accurate, fast 

and ergonomic 

Increase tightening 

accuracy 

With automatic shut-off you get a high level 

of tightening precision, even in soft joints. 

This helps increase productivity since the 

operator gets a clear shut-off signal when 

tightening is completed. 

Boost productivity 

Unique twin-motor drive: one for high 

speed rundown, the other for high 

precision tightening. 

Optimized S-Bar 

A blank reaction bar has to be bent, cut 

or welded. The S-Bar has been optimized 

for use in 70-80 percent of all applications 

straight out of the box. 

Single-handed 

operation 

Because the LTP 61 is light, compact 

and well-balanced, it can be used 

with just one hand. 

One reaction bar, 

dozens of jobs 

Now easier to 

run in reverse 

The Multi-Point Reaction Bar features a sliding 

bracket that gives you a number of different 

reaction points for different applications. 

Unlike its predecessor, the LTP 61 

runs in reverse and stays in reverse 

until you change the setting. Thanks 

to a new mode selection, you can 

now hold the tool with just one 

hand, whatever direction you run 

the machine.

Twice as fast as the LTP 51 

Thanks to the new motors, the rundown 

speed has been doubled in comparison 

with its predecessor. 

Adjustable torque range 

Virtually silent and 

vibration-free 

Shut-off nutrunners generate no 

process noise. And by building up 

torque continuously, they are much 

quieter than impact wrenches. 

From 60-4 000 Nm 

Multi-torque for 

multi-tasking 

With a range consisting of 11 different 

tool sizes, there is an LTP 61 to suit 

your needs. The smallest model weighs 

just 2.6 kg and delivers 60 Nm, while 

the largest supplies 4 000 Nm. Stall 

versions, designated LMP 61, are also 

available. 

With this easy-to-mount selector, 

you transform one nutrunner into four. 

The Multi-Torque Selector allows you 

to preset four different torque levels 

per tool. 

11

Technical data 

Air con- Air 

Bolt Square Torque range Min torque Free CS sumption at inlet 

size drive at 6.3 bar at 3 bar speed Weight Length distance free speed thread Spline 

Model mm in Nm ft lb Nm ft lb r/min kg lb mm mm l/s cfm in type Ordering No. 

Non reversible 

LTP61 H100-13 M12 1/2 55-100 40-75 45 35 1800 3.0 6.6 223 29 20 42 3/8 3 8431 0800 07 





LTP61 H700-25 M22 1 360-650 265-480 280 207 280 4.5 9.9 305 34 20 42 3/8 5 8431 0800 42 



LTP61 H1900-38 M30 1 1/2 1050-1900 770-1400 800 576 90 14.1 31.0 380 68 20 42 3/8 8 8431 0800 63 

LTP61 H2800-38 M36 1 1/2 1550-2800 1140-2060 1200 864 65 14.1 31.0 380 68 20 42 3/8 8 8431 0800 70 

LTP61 H3800-38 

Reversible 

M42 1 1/2 2100-3800 1540-2790 1600 1152 50 14.1 31.0 380 68 20 42 3/8 8 8431 0800 77 

LTP61 HR100-13 M12 1/2 55-100 40-75 45 35 1800 3.0 6.6 235 30 20 42 3/8 3 8431 0801 08 





LTP61 HR700-25 M22 1 360-650 265-480 280 207 280 4.5 9.9 305 34 20 42 3/8 5 8431 0801 43 



LTP61 HR1900-38 M30 1 1/2 1050-1900 770-1400 800 576 90 14.1 31.0 380 68 20 42 3/8 8 8431 0801 64 



Weight excluding reaction bar . Recommended hose size 13 mm for hose length up to 5 m. 

Air con- Air 

Bolt Square Torque range Min torque Free CS sumption at inlet 

size drive at 6.3 bar at 3 bar speed Weight Length distance free speed thread Spline 

Model mm in Nm ft lb Nm ft lb r/min kg lb mm mm l/s cfm in type Ordering No. 

Equipped with Multi Torque unit 

LTP61 HR100-13-MT M12 1/2 55-100 40-75 45 35 1800 3.3 7.3 288 30 20 42 3/8 3 8431 0806 02 





LTP61 HR700-25-MT M22 1 360-650 265-480 280 207 280 4.8 10.6 355 34 20 42 3/8 5 8431 0806 33 



LTP61 HR1900-38-MT M30 1 1/2 1050-1900 770-1400 800 576 90 14.4 31.7 430 68 20 42 3/8 8 8431 0806 51 



Weight excluding reaction bar . Recommended hose size 13 mm for hose lenght up to 5 m. 

LTP 61 H/HR accessories 

Modell 

Hose nipple 

Swivelling type MultiFlex connector (3/8’’ BSP) 

Exhaust hose 

Protective cover for 61 standard (transparent) 

Protective cover for 61 Multi-torque (transparent) 

Multi torque selector for LTP 61 

Quick change retainer, 1/2” square models 

Quick change retainer, 3/4” square models 

Quick change retainer, 1” square models 

Bestell-Nr. 

9000 0242 00 

8202 1350 22 

4210 2201 00 

4210 4672 00 

4210 4672 01 

4210 4636 95 

4250 1190 00 

4210 3476 80 

4210 3524 80 

MultiFlex connector, swivelling type 

Protective cover 

Multi torque selector

Swivelling suspension yokes for LTP 61 

Modell 

Mounting dia Ø54mm 

H 100-13 

H 170-13 

H 230-19 

H 350-20 

H 500-20 

H 700-25 

H 900-25 


HR 100-13 

HR 170-13 

HR 230-19 

Mounting dia Ø63.5mm 

H 1900-38 

H 2800-38 

H 3800-38 


HR 350-20 

HR 500-20 

HR 700-25 

HR 900-25 

HR 1900-38 

HR 2800-38 

HR 3800-38 

Mounting dia Ø83.5mm 

H 1500-25 

HR 1500-25 

Reaction bars 

Modell 

Aluminium, max torque 175Nm, spline 3 

Square braket, spline 3 




S-type, spline 3 




Sliding drive type (short), spline 3 





Sliding drive type (long), spline 4 

Sliding drive type (long), spline 5 

Extended sliding rectionbar, quick change att., spline 5 

Specially designed for truck rear wheel tightening 

Installation Proposal 

Ball Valve + 

MIDI F/RD 15 + 

ErgoQIC 10 

8202 0829 11 

Ball Valve + 

MIDI FR 15 + 

DOS 15B 

8202 0845 67 

Service kits 

Modell 

Trigger kit 

General service kit 

ErgoNIP 10 10 5 m CABLAIR 13 13 ErgoQIC ErgoQIC 10 10 

ErgoNip 10 M10 

8202 1180 79 79* 

ErgoNIP Nipple 1/2’’ 10 BSP 10 10 m CABLAIR 16 16 ErgoQIC ErgoQIC 10 10 ErgoNIP 10 M10 

8202 1182 00 

Bestell-Nr. 

4210 3088 80 

4210 3088 84 

4210 3088 83 

4210 3088 82 

4210 3088 81 

L=400mm 

50 x 100 x 12 mm 

65 x 125 x 16 mm 

65 x 125 x 16 mm 

85 x 150 x 20 mm 

– 

– 

– 

– 

1/2” square drive 



1” square drive 





Bestell-Nr. 

4081 2190 90 

4081 0397 90 

– 

– 

– 

– 

– 

– 

– 

– 

– 

C-C 70-120mm 

C-C 70-120mm 

C-C 76-126mm 

C-C 80-125mm 

C-C 80-130mm 

C-C 82-218mm 

C-C 82-218mm 

C-C 68-112mm 

Suspension yoke 

Bestell-Nr. 

4210 2219 01 

4210 2219 03 

4210 2183 01 

4210 2726 01 

4210 3899 00 

4210 4480 03 

4210 4480 04 

4210 4480 05 

4210 4480 09 

4210 4481 83 

4210 4481 63 

4210 4481 84 

4210 4481 85 

4210 4481 89 

4210 4616 84 

4210 4616 85 

4210 4498 80 

Bracket 

S type 

Sliding drive type, short 

Sliding drive type, long 

Sliding drive, no drive, long 

and short 

Extended sliding reaction bar 

13

www.atlascopco.com 

9833 1859 01 E.C.O Reklambyrå AB. Åtta.45 Tryckeri AB 2008:1

LTP 61 Shut-off Nutrunner - Atlas Copco

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