Ingersoll Rand, a global leader in industrial and production tools and equipment, has released the 2135TiMAX, an innovative successor to its most popular 1/2″ pneumatic model — the 2135Ti Titanium Impactool™. The new 2135TiMAX features maximum power, control and reliability.

“The 2135Ti has always been well-received by our industrial and assembly customers,” said Matt Nuijens, Ingersoll Rand national industrial supply manager for the Americas. “The new model builds on this platform and offers even better features for industrial, MRO and assembly technicians.”

The 2135TiMAX delivers maximum power with 780 foot-pounds of reverse torque and 1,100 foot-pounds of nut-busting torque. With more than 10 percent added torque over the original model, the new Impactool still weighs only 3.95 pounds. It’s ideal for extended usage and highly repetitive applications, delivering the best power-to-weight ratio in its class and less operator fatigue. The tool’s twin-hammer mechanism delivers more power per pound, and is less sensitive to air pressure fluctuations than any other design.

The new model has also been re-engineered for maximum control. Its feather-touch trigger and patented power regulator with enhanced settings help operators ensure they don’t overtorque critical joints. Patented one-handed forward-reverse controls allow operators to conveniently switch between tasks or applications.

Ingersoll Rand also now offers maximum reliability to tool operators with a free two-year extended warranty with tool registration on the 2135TiMAX. The new model features optimized airflow for greater tool efficiency and maximum performance. With less air consumption than competitive models, the 2135TiMAX has a lower cost of ownership and less downtime. For added durability the tools feature Titanium hammer cases, hardcoat anodized end plates and both proprietary metallurgy and heat treatment processes.

 For more information on the 2135 TiMax line, visit pneumatictoolsonline.com

Ingersoll Rand offers two basic types of Air Motors:

Vane Motors

Are smaller, lighter and less expensive than piston motors or similar power. Simple in design and construction, they can be operated in most any position. Vane motors are available in a broad range of speeds, torques and power and are the most widely used type of air motor.

Radial Piston Motors

Operate at lower speeds than vane motors. Have excellent starting and speed control. Especially good for “lugging” heavy loads at slow speed. Standard operational position is horizontal.

Reversible / Non-Reversible Air Motors

Non-reversible air motors are rated at slightly higher speeds, torques, and horsepowers than reversible motors of the same family.

Air Pressure

When selecting air motors, remember that the specification listings show only one set of performance figures, at a particular pressure — 90 psig. Air motors are designed to produce optimum performance at this pressure.

Many other speeds, torques and power can be obtained from the same motor by regulating the pessure, air supply or exhaust. While they will operate at pessures below 40 psig, their performance may not be consistent. They can also be operated above 100 psig, but often at the expense of increased maintenance.

A good rule to follow is to size an air motor based on approximately 70% of the lowest available air pressure. This will allow additional power for starting and possible overloading.

Maximum Power

Ungoverned air motors develop maximum horsepower at approximately 50% of free (unloaded) speed while governed motors reach their peak horsepower at about 80% of free speed.

Desired Operating Speed

The desired operating speed, not the free and unloaded speed should be considered when selecting air motors.

Ungoverned air motors should not be run unloaded. The performance curves in this catalog indicate the maximum speeds at which the motor should be operated. The nameplate stamped speed is present for identification only.

Required Torque

Equally important as the speed at which an air motor is to be run is the required torque. The combination of the two factors—speed and torque—determine the power of the desired motor. Care should be taken to differentiate between stall (maximum) and running torques when selecting air motors.

Speed and Torque

Starting torques are approximately 75% of stall torques.

Operating or running torques at any speed can be approximated from motor performance curves

Shaft Radial Loads

When an air motor is to be used with a pulley, sprocket, or gear on the shaft, the overhung load (perpendicular to the shaft), commonly called “shaft radial loading” must be considered. It is shown in the performance curves and is generally assumed to be applied at the mid-point of the keyway of the shaft.

Air System and Supply

Once an air motor has been selected, it is important to insure that the desired air pressure is available at the motor, while the motor is operating. A pressure reading at the compressor does not mean that the same pressure will be available to an operating air motor, because of possible restrictions and friction losses in the air system. Exhaust restrictions can also affect air motor operation, and are often the cause of performance problems.

Inlet Controls

When installing reversible air motors, a four-way valve or two three-way valves should be used to prevent blockage of the secondary Exhaust Port. This is the opposite Rotation Port to that which is being pressurized.

Replacing Electric Motors with Air Motors

Electric motors, with the exception of series wound direct current motors, have entirely different performance characteristics than air motors. Therefore, their torque and speed curves will not match. Many electric motors are oversized to allow for overloading and lower power air motors can be used as replacements.

Ingersoll Rand Assistance

Your Ingersoll Rand Air Motor distributor and factory representatives are anxious to help with motor problems, applications and selections. For rapid response, use the Quick Info Request Form. 

Wera BiTorsion System

The punishing stresses that can damage or destroy screwdriving system components (i.e. bits) represent a problem that Nature solves in a very simple way. A tree, when it is subjected to a gust of wind, is initially protected by a loss of leaves, or the swaying of the branches. If the wind grows to the power of a storm, then the trunk of the tree will start to give further, protecting itself from the tremendous stress. As a result, these multiple stages of flexibility allow the tree to withstand the huge force of a storm, without damage to the system.

To improve screwdriver bit service life, Wera has taken its cue from nature: Through the gradual yielding of both the screwdriver bit and the adapter, the service life of the entire system is dramatically increased.

The new BiTorsion® Bit now goes one step further: By means of a specific tempering process, the hardness of the bits is reduced only in the torsion zone. This softer zone absorbs energy and therefore dissipates peak loads from the tip, into the torsion zone.

Wera has also engineered the 75 mm (3″) length of the adaptor to help cushion peak loads, by acting as a precision torsion spring. The spring curve is designed so that brief, lower torque peaks (phase 1) are transmitted directly from the bit to the torsion spring in the adaptor, where they are absorbed. Under higher, more intense torque peaks ( phase 2 ), the adaptor “locks up” which activates the torsion zone of the bit itself.

Wera’s new BiTorsion® adaptors and bits can also function independently: the adaptors will help „conventional” bits to last longer, and BiTorsion® bits will perform better than conventional bits when used in a “conventional” adaptor. However, the optimum effect of the precision engineered spring curves is only achieved, when both the BiTorsion® adaptor and bit are combined.

The BiTorsion® – components can be easily identified by the coloured band, the Wera symbol for increased service life.

For more information on Wera Tools, click here

Wera has now extended its Kraftform Kompakt® range with practical screwing tools for electrical craftsmen. The new VDE sets were presented at the Practical World 2006 Hardware Fair in Cologne.

The Kraftform Kompakt® VDE series constitutes a practical system consisting of a Kraftform® handle with hexagonal nest for blades and insulated exchangeable blades. They are suitable for working at voltages up to 1000 V AC and 1500 V DC, and thus take into account the fact that when working on live components of electrical equipment, the only tools which should be used are those which are insulated and have been made and tested especially for this type of work.
The insulated exchangeable blades can be simply and quickly inserted into the handle as they are needed. Various combinations of insulated blades can be supplied, including for the PlusMinus profile, as well as combined with various industrial standard switch cabinet keys and a voltage tester.

Wera’s insulated exchangeable blades fulfil all requirements corresponding to national and international standards (IEC 60900:2004 or DIN EN 60900). In addition, Wera offers users a very high degree of safety with regard to insulation through a routine test of the blades for puncture strength lasting 10 seconds, at a ten times higher test load of 10,000 Volt in a water bath.

The Kraftform® handle in combination with the blades being applied provides the highest possible transfer of turning moment. The blade engages automatically when it is pushed in as far as the base, and is locked against unintentional removal.
The plastic materials used by Wera for the Kraftform® handle not only have significant ergonomic benefits, but they also guarantee conformance to the increased test requirements relating to puncture strength.

For more information on products from Wera Tools, click here

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Today we have begun uploading the model listings from our different product lines so that our customers can verify that we carry the items they are looking for. To find any model from the many manufacturers we represent, simply visit our home page here and typing the model number you are looking for in the search box at the top lefthand side. Once you find the product in our store, you can call us at 1-800-353-4767 for pricing information or to place an order. Our web staff is working around the clock to bring improvements like this and many others in order to enhance your experience on our site.

Thank You for visiting our sites.

- Lou Zampini

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• Tanks and Tank Components

Control

A number of different methods of control are available within the category of pneumatic screwdrivers:

• Lever Start- A lever is pulled by the hand to open the valve, allowing the air into the motor which starts the screwdriver.
• Trigger Start- Generally found on pistol grip pneumatic screwdrivers, the trigger operates on the same principal as the lever start except the tool has a trigger style button in place of the lever.
• Auto Start or Push to Start- When the output is pushed onto the fastener head, this opens the tool’s valve and allows air to the motor which starts the screwdriver.
• Remote Start- Generally used in fixtured operations, a pneumatic circuit is used to control the screwdriver operation.

Motor

• Airflow- The greater the pressure of the air entering the motor, the greater the pressure differential created. This causes the motor to rotate quicker. If there is too much pressure entering the motor, the motor will turn too quickly wearing the bearing and blades out (the blade tip speed on the cylinder is greatly increased).
• Exhaust- If the exhaust becomes blocked, this will prevent the air from escaping, causing back pressure and reducing the differential accross the blade. The motor will then rotate slower, with less power.
• Blade Condition- If the blades in the motor are worn out or in poor condition, the pressure difference between the blade chambers cannot be maintained. Regular lubrication is necessary to keep the blades in good condition.
• Air Condition- If the air supply is dirty, this will prevent the blades from sliding in & out of the rotor and keeping contact with the cylinder.
• Overall Motor Condition- The motor components (bearings, blades, rotor, and cylinder) should be kept clean and in good condition to allow a free spinning motor.

What determines the strategy and tool type?

One of the first things to consider when selecting a new screwdriver or nutrunner for a particular application is the type of clutch that is best suited for the application. The following information describes the functional arrangement of each type of clutch and the types of applications for which each is best suited.

Direct Drive Clutches  Direct connection between the motor and the driving bit. Fastener is driven until the motor stalls. This is the simplest and least expensive of all drives. Low maintanence, diaphram-type pressure regulators can be used to adjust the stall torque. Reducing the stall torque in this type of tool also reduces the operating speed. Motor wear, fluctuations in pressure, and faulty lubrication are all factors that will cause variation in delivered torque. “Kick” can also be fatiguing to operators. 

Positive Clutches  Motor and driving bit are connected through one clutch, the jaws of which have sloping faces and are normally held apart by a light spring. This clutch provides a stationary bit while locating on a fastener even when the motor is running. When applied to a fastener, the operator’s axial pressure engages the jaws. Direct drive results until torque buildup is sufficient to cause jaws to cam out of engagement against operator pressure. Jaws ratchet, causing further torque buildup until the operator stops the tool or removes it from the fastener. With a positive clutch, the operator’s technique can cause considerable variations in delivered torque. Frequently used to drive screws into wood and similar materials where torque requirements may vary due to knots, soft spots, etc. Not recommended where excessive axial pressure on fastener may damage assembly. Axial impact action of ratcheting jaws may also cause damage to some assemblies.

Adjustable Ratcheting Clutches  Motor and driving bit are connected through two clutches. One has 90 degree jaws held apart by a light spring. This clutch provides a stationary bit while locating on a fastener even when the motor is running. When applied to a fastener, the operator’s axial pressure engages the jaws. The second clutch consists of two jaws with sloping faces held together by the compressive force of a heavy spring. This force can be adjusted by means of a nut. When torque is sufficient to cause the jaws of the second clutch to cam apart against the force of the spring, jaws disengage and re-engage repeatedly. This ratcheting action causes further torque buildup until the operator stops tool or removes it from the fastener. A good general purpose clutch for applications where close torque control is not required. Adjustment should be set so desired torque is achieved shortly after jaws begin to ratchet. Sound and feel of ratcheting signals the operator to stop or remove the tool from the fastener. As the operator’s reflexes slow, due to fatigue or distraction, torque can become excessive. Noise and vibration from ratcheting torque can present problems.

“One Shot” Clutches  Motor and driving bit are connected through two clutches. One has 90 degree jaws held apart by a light spring. This clutch provides a stationary bit while locating on a fastener even when the motor is running. When applied to a fastener, the operator’s axial pressure engages the jaws. The second clutch consists of a pair of jaws with precision machined pockets. Hardened balls rest in the pockets and are clamped between the jaws by a heavy spring. Torque setting depends upon compressive force in the spring, which is adjustable. When desired torque is reached the balls tend to roll out of thier pockets, forcing the jaws apart. This action separates the 90 degree jaws and completely disconnects the motor from the bit. The motor free-wheels and no further torque is applied to the fastener. Excellent for practically all applications, especially torque-critical jobs such as driving fasteners into soft materials or clamping brittle materials. Instantaneous clutch action is quiet and vibrationless. Clutch maintanence is minimal due to the absence of ratcheting. Not recommended where torque requirements from fastener to fastener are not uniform (due to mis-alignment of parts, etc.) or for rare applications where torque peaks higher than final torque is encountered during self-tapping or thread forming.

Capacity  In determining the size of the tool required, consideration must be given not only to the size of the screw to be driven and the final torque required, but also to the nature of the job. The maximum capacity of a screwdriver or nutrunner varies for each type of application. The torque imparted to a screw or nut can come from three sources: (1) From air pressure against the rotor blades, (2) From flywheel effect of the motor and other rotating parts, and (3) from clutch jaw impact of ratcheting clutches. Heavy turining resistance on the run-down reduces speed and consequently reduces torque available from flywheel effect and jaw impact. Resilient assemblies absorb both flywheel energy and jaw impact and thereby reduce torque produced by these two factors.

The maximum torque a given tool can impart to a screw or nut is greatest when driving “free-running–sudden stop” screws or nuts used to fasten non-yeilding materials. Here the resistance to turning is low throughout the run-down and the tool runs at close to it’s free speed. Maximum possible torque is imparted from each of the three sources mentioned above when the screw or nut seats against a solid stop.

Normally, a particular tool will deliver lower torques on a “soft pull up” job than any of the other types of jobs since the heavy resistance to turning reduces the amount of torque obtained from the flywheel effect. On other types of jobs illustrated at the right, a tool will generally deliver slightly more torque than the maximum “soft pull up” rating.

For example, a “soft pull up” condition would exist in the case of a sheet metal screw if the screw is head seated before the hole in the sheet was expanded to the maximum root diameter of the screw, since resistance to turning would remain high throughout the entire run-down. If, however, the screw were longer and considerable run-down occurred after the hole in the sheet was expanded to maximum diameter, the tool could be expected to pick up speed due to the decrease in resistance and the energy available from the flywheel effect and impacting would increase. Thus the job would change from a nominal “soft pull up” condition to something in between that condition and “free running–sudden stop”.

Impacting is not a factor with “One Shot” and direct drive tools. Flywheel effect causes a noticable variation in torque delivered by direct drive tools when job conditions are not uniform. This variation is less pronounced in “One Shot” tools.

Reversibility  Non-reversible models recommended for all normal assembly work. Reversible models are suggested for all disassembly work and for assembly where screws must be frequently removed to cross threads or defective threads.

Speeds  The “free speed” of a screwdriver is the rpm of the drive spindle with no load, 90 lbs. of air pressure, and with the speed regulator wide open. Different “free speeds” are obtained by using different gear ratios between the motor and the drive spindle. The actual speed of any tool can be reduced if desired by using the speed regulator to adjust the rate of air flow to the motor.

With Direct Drive select a tool with a “free speed” whose maximum stall torque is equal to, or greater than, the torque required by the heaviest screw to be driven. Then use the speed regulator to reduce the speed and power the tool to give exact torque required.

With Adjustable Ratcheting Clutch high “free speed” usually gives greater clutch jaw impacting effect, and will drive free-running and light pull-up screws tighter. Reduce speed with the speed regulator when less impacting effect is desired. Tools with slow “free-speed” can deliver greater torque on long, heavy pull-up jobs.

With “One-Shot” Clutches, the degree of torque accuracy generally increases at lower speeds. The lowest speed “One-Shot” tools are practically insensitive to variations in job conditions. A certain amount of torque variation should be expected from higher speed tools but thier accuracy will still be adequate for most production jobs.

Such variations will be most pronounded on jobs approaching “free running–sudden stop” conditions. When the allowable torque range specified for a fastener is extremely narrow, the lowest speed tool having sufficient torque capacity is recommended.

Handles  In most instances a straight handle is used for driving verticle screws, and an offset or side handle for driving horizontal screws. However, the two governing factors are the position of the operator’s forearm and the position of the screw. If the screw and the operator’s forearm lie parallel to each other, use an offset or side handle. If they are perpendicular, use a straight handle.

Straight handle with overhead suspension balancer is a popular arrangement for bench assembly work where parts can be arranged so that screws can be installed vertically. Offset or side handles are better for resisting torque reaction and recommended for heavier work, particularly for slow speed direct drive tools.

Final Notes

• If the torque specified is high, a straight case tool should not be used unless the torque reaction is reduced to the operator by mounting in a bench stand or utilizing a side handle.
• The torque tolerance specified should determine whether or not standard tooling is acceptable. If the tolerance is too tight, it may not be possible to use a handheld pneumatic screwdriver.
• Wood screws, self-tapping screws, and machine screws all require different types of clutches for optimum performance.
• If a complex procedure is required such as tighening, loosening, then re-tightening, special consideration must be given in tooling selection.
• If the joint type varies, a number of different tool settings may be necessary to give the same torque.