A rotary hammer with a vertical motor is a more powerful and productive device compared to horizontal counterparts. Let's analyze the key features of this type of tool and review the best models of punchers of this class.
The selection of goods was carried out on the basis of reviews, opinions and ratings of users posted on various resources on the Internet. All information is taken from public sources. We do not cooperate with manufacturers and trademarks and do not call for the purchase of certain products. The article is for informational purposes only.
Features of Vertical Hammers
In rotary hammers with horizontal (or longitudinal) execution, the electric motor is placed along the axis of rotation of the drill. This gives a narrow case on all sides, but greatly increases the design in height. The more powerful the device, the longer the model and the further it is necessary for the operator to stand from the wall for comfortable work.
The vertical hammer drill has an electric motor located perpendicular to the axis of rotation of the drill in the middle of the body. Thus, regardless of engine power, its length extends downward and does not affect the distance from the cartridge to the handle. This gives compact dimensions and increased power compared to linear models.
The tool with a vertical motor was named L-shaped, because it is similar in configuration to this letter in an inverted form. People call it barrel, due to the expanded middle part with an engine resembling a barrel. Since such models are more powerful and heavier, working with them requires physical strength and some experience.
This is a tool for experienced craftsmen and hard work (removal of the upper concrete layer, destruction of walls, drilling holes of large diameter), or small tasks that can be completed much faster (output of air conditioning communications, installation of suspended ceilings, fastening the profile under plasterboard partitions, cutting holes for sockets, etc.).
Pneumatic type impact mechanism
The increased productivity of a rotary hammer with a vertical motor is due to the fact that they are equipped with a pneumatic impact mechanism. Unlike linear models with a “drunk bearing”, the conversion of electrical energy into mechanical energy is realized here, which then creates air pressure.
The design uses a crankshaft with a connecting rod to which a piston is attached. The latter is placed in the handset. When the motor rotates, it is driven and compresses the air in the chamber. On the other hand, there is a free piston driven by the pressure created. He hits the striker, striking. Faced with a striker, the free piston goes back, squeezing the air in the tube. At this moment, the main piston on the connecting rod makes another move, and the cycle repeats.
In a minute, such a system is capable of performing from 900 to 3,000 strokes. Pressure on the tool is not required, the impact force does not depend on this. The operator only needs to direct the device and maintain it at a given level.
Since the parts in the pneumatic mechanism are less in contact with each other (only a free piston and a hammer collide), this design lasts longer and is able to withstand severe loads (long-term destruction of wall partitions, deep drilling by 500 mm).But the presence of a crankshaft with a connecting rod requires regular maintenance in the form of lubricant.
See how this shock mechanism works:
Drill Mount Type
Vertical drills can be equipped with the following drill mounting systems:
- SDS Plus;
- SDS Max.
SDS Plus
In light household models with a vertical engine, the type of fastening SDS +, designed for similar tool shanks, can be used. The diameter of the snap-in inserted into the cartridge is 10 mm, and the outer working part is allowed from 12 to 32 mm. But even when using the snap on 18 mm, strong vibration is felt, so working with thick augers is not comfortable. Starting from a diameter of 18 mm, the drill “walks” a little during rotation, therefore, drilling accuracy is reduced. Another use of diameters of 20-30 mm leads to accelerated wear of the mounting system and the need to replace the cartridge.
Shank snap SDS Plus.
SDS Max
In more powerful vertical rotary hammers, the SDS Max attachment type is used. Such a cartridge is designed to resist increased shock loads. A shank with a diameter of 18 mm, immersed by 7 cm, is used here. The fastening system contains 5 grooves and locking wedges with a total clamping area of 389 mm². This gives increased fixation and allows the use of drills with a cross section of up to 50 mm, and hollow crowns with a diameter of up to 160 mm. But this type of fixation does not have the ability to clamp the drill, so the tool only supports two modes of operation: drilling and chiselling.
Shank snap SDS Max.
Pros and Cons of Vertical Hammers
The location of the engine perpendicular to the axis of rotation of the drill gives the following advantages:
1. More intense cooling. The electric motor contacts the rest of the housing only in the place of the gearbox, and the other sides transfer heat to the outside. This design also allows you to place a powerful fan in the end, accelerating the removal of excess temperature.
2. The increased power. Since here the change in the dimensions of the motor in favor of power does not affect the body length, such a tool is more productive and is able to cope with serious tasks faster.
3. The design feature of the pneumatic impact system better tolerates loads.
4. It is especially convenient to drill holes down.
5. You can quickly free your hands (without waiting for the cartridge to stop) and put the device on the barrel.
6. Shortened lengths due to the vertical engine simplify storage and transportation of the punch.
7. Equipment with larger diameters breaks less frequently.
8. Often in the design, an anti-vibration system is provided, which is a rarity in horizontal models. This reduces operator fatigue and protects against the development of occupational diseases during everyday use of a hammer drill.
But models with a vertically mounted engine also have disadvantages. The main disadvantages are as follows:
1. Higher cost compared to horizontal models.
2. The increased weight from which hands get tired faster, especially when working at height.
4. Often in models there is no reverse, and a long drill of 500-600 mm has to be removed from the wall on its own.
5. The overall dimensions of the tool are quite large.
The best vertical home-made rotary hammers
Understanding the advantages and features of this type of tool, let's move on to the rating of perforators with a vertical motor, including the main characteristics and user reviews. This will help determine the choice of device for specific tasks and be prepared for the shortcomings that it has. Let's start with household models that are purchased for the private repair of a house or apartment in order to complete the work faster.
Einhell RT-RH 32
The first place in the ranking is given to the models from the German brand. The device with a vertical engine has three operating modes, switching at the top of the housing. A good vibration damping system has been implemented. The cartridge has a rubber ring, which helps to press the stopper even with sweating hands. The SDS-Plus mounting system allows you to clamp drills with a diameter of up to 30 mm. The tool has a power of 1250 W and makes 4300 beats per minute with a power of 3.5 J. The device is equipped with a long wire of 3 m and a case.But the cheapness of the model affected the lack of a safety clutch. The punch weighs 6.1 kg.
+ Pros Einhell RT-RH 32
- Easy brush replacement.
- Good vibration protection.
- Change Depth Departure Departure with One Touch.
- The metal part of the case promotes accelerated cooling.
- Long wire 3 m.
- Sold with case for easy transport.
- Nice design.
- Cons Einhell RT-RH 32
- The speed is not adjustable.
- When the equipment is jammed, the punch begins to twist the hands.
- There is a slight backlash on the cartridge, due to which the alignment is broken and the drill “walks”.
- Slowly works in the drilling mode (low speed of 800 rpm).
- The case from the kit does not have a drill storage case (only cutouts in the top cover).
- Weight over 6 kg.
Output. The hammer drill stands out with its ergonomic handle. She has an arched shape that fits well in her hand. Under the index finger there is a cutout for the remaining fingers, which reduces the load on the hand. Inside and outside the handle there are rubber pads with embossments, providing a firm grip. Another product is notable for a set of drills attached to it in the kit. This gives everything you need for home repairs without additional investment.
Bison ZPV-30-900 VK
The second place in the category of household punchers, in which the engine is placed vertically, was taken by a model from the Russian brand. The device has a power of 900 watts and makes up to 2800 beats per minute with a force of 4.2 J. The frequency of rotation is 750 revolutions. Shank mount type - SDS +. Drills with a diameter of 30 mm and crowns of 90 mm can be used. The tool works in three modes. A vibration damping system has been implemented, which, judging by the reviews, really works. The brush indicator indicates wear. The kit already contains grease for gearbox maintenance.
+ Pros Bison ZPV-30-900 VK
- Three modes that allow you to do one punch and do not carry a drill with you.
- Vibration protection on the handle and inside the case.
- Anti-slip coating on handles.
- Safety clutch provided.
- The chuck is rubberized and convenient for quick tool changes.
- Attractive price compared to peers.
- Boers do not drop out of the cartridge.
- Cons Bison ZPV-30-900 VK
- There is no starting reverse rotation of the cartridge.
- When chiseling, the engine heats.
- Loud gear operation.
- A thick cartridge blocks the entry point when working with 100 mm short augers.
- Cheap case included.
Output. This rotary hammer has the lowest weight in its category. The mass of the product is 4.9 kg. Manufacturers managed to achieve this indicator through the use of a fully plastic case. To prevent this from affecting heat dissipation, the design provides for numerous perforations for the release of hot air. Despite its light weight, the impact force is 4.2 J, so it is suitable for the destruction of concrete and brickwork, but with frequent interruptions.
Vortex P-1200K-M 72/3/3
Completes this rating category is another domestic model with a vertical engine with a capacity of 1200 watts. The rotary hammer spins the SDS-Max cartridge up to 742 rpm and performs up to 3750 strokes. The rotational speed and force are adjustable. A cable with a length of 2 m is provided for connecting to the network. Drills with a diameter of 40 mm and crowns of 90 mm are allowed. The tool works in two modes. The front handle rotates 360 degrees, but the depth gauge is not fixed in it.
+ Pros Vortex P-1200K-M 72/3/3
- The handle is rubberized on all sides.
- Long trigger for several fingers.
- The puncher stands firmly on the floor, holding on to the barrel.
- Vibration damping, due to which it is almost not felt on the rear handle.
- The case is included in the package.
- Easy passes stone and concrete.
- The chuck holds firmly even thick drills with a diameter of 40 mm.
- The housing has a minimum of holes that protects against dust.
- Cons VORTEX P-1200K-M 72/3/3
- Relatively high cost.
- 2 m network cable
Model weighs 8 kg. - Some users have broken gearbox during the warranty period.
- There is no adapter from SDS-Max to SDS + in the configuration.
Output. This model with a vertical engine leads among the rest in two respects at once: impact power and duration of continuous operation. The impact force is 9 J, which is quite high for a household punch and is suitable for confident destruction of solid materials. Most of the tool body is made of metal, which accelerates heat transfer and allows you to work for several hours without interruption for cooling.
The best vertical semi-professional rotary hammers
The semi-professional class is used to accelerate the execution of tasks of average complexity in construction and repair. The power, endurance and productivity of the tool allows them to work more often, so punchers are suitable even for commercial activities. Here is a ranking of models with a vertical engine of this class.
Makita HR 2811F
Let's start with the Japanese Makita punch. The tool has a power of 800 watts and is able to rotate the tool at speeds up to 1100 rpm. The speed is electronically controlled. The gearbox strikes up to 4,500 per minute with a force of 2.9 J. The SDS + chuck fixes drills with a diameter of up to 28 mm. You can work with crowns up to 8 cm. There are three modes in the device, so it is considered universal. A replaceable chuck is clamped in the main one and is used for drilling. A long trigger greatly facilitates holding the button during long drilling.
+ Pros of Makita HR 2811F
- Three modes for drilling, chiselling and drilling.
- Multiposition second handle.
- There is a depth gauge.
- The rubberized case will not crack if accidentally hit or dropped.
- Stable on the surface.
- High rotation speed of 1100 rpm for drilling.
- The diode accurately illuminates the working area.
- Cons Makita HR 2811F
- Relatively high cost.
- Weak damping system.
- The sleeve for attaching the cartridge to the spindle from silumin (cracking).
- There is a reverse, but it is of an electronic type (weak and wears out the motor).
- There is a little play in the cartridge.
- Expensive repair service.
Output. The hammer drill is remarkable in weight of 3.3 kg. This is one of the smallest indicators in the semi-professional class. He also has a short length of 38 cm, simplifying access to tight places. If you have to work in a limited space, then this is the model for you. In the reviews, some masters share that the puncher is especially practical where you can crawl, holding it with only one hand.
Bosch GBH 3-28 DRE
Model with a vertical engine from the "blue" professional line "Bosch". It has a capacity of 800 watts, without creating a load on the domestic network. It strikes with a force of 3.1 J and a frequency of 4000 per minute. There is a speed adjustment of 0-900 rpm. The SDS Plus cartridge fixes equipment with a diameter of 28 mm and hollow crowns of 8.2 cm. A cable length of 3 m increases operator mobility. The manufacturer installed a special coupling in the cartridge, which begins to work like a ratchet when biting a drill.
+ Pros of Bosch GBH 3-28 DRE
- Changing Depth Limiter Departure with one touch.
- Vibration protection on the rear handle.
- Long trigger for gripping with all fingers.
- The chamfered shape of the cartridge does not close the point of entry of the drill into the wall.
- The swivel cable does not allow it to twist and burst.
- There is a drilling mode.
- Optimum weight distribution.
- Cons Bosch GBH 3-28 DRE
- Flimsy plastic suitcase.
- The safety clutch trips once.
- The power button for some users is too low (creates difficulties when pressed).
Output. The device is notable for the presence of a reverse, which is rare for such punchers. In addition, here the reverse start-up type is implemented by turning the brushes, and not by electronics, which does not “steal” power and helps to preserve engine life. To enable the function, turn the mode dial to the appropriate position.If you often need to extract a drill 40-50 cm long from the wall, then this tool will be much easier to work with.
Metabo KHE 3250
The hammer has a power of 800 watts, there is a vibration reduction system to protect the operator. The frequency of strokes is 4470 per minute with a force of 3.1 J. The instrument weighs 3.5 kg, so in some places they will be able to crawl with one hand. Drills with a diameter of 32 mm and crowns of 8.2 cm are allowed. The maximum rotation speed is 1150 rpm, which is suitable for shockless mixing.
+ Pros of Metabo KHE 3250
- Hinging the wire to the housing prevents cable breaks.
- Three operating modes with a convenient switch.
- Reverse for easy tool removal.
- Ratchet clutch for disconnecting torque from the chuck.
- German assembly.
- Convenient start button that goes to the top of the handle.
- The second Metabo Vibra Tech handle also has a spring insert that reduces vibration.
- Cons Metabo KHE 3250
- The trigger slides a little.
- Unstable barrel positioning.
- The long second handle interferes in tight spots.
- The modes are tightly turned on.
- When holding with one hand, the power button is clamped spontaneously.
- The anther of the cartridge is quickly contaminated.
Output. The features of this vertical rotary hammer are a long network wire of 4 m, which allows in most cases to do without an extension cord, and reverse with turning brushes. Still here is the Metabo Marathon engine, which is characterized by increased reliability. If you need a maximum service life without breakdowns and advanced functionality, then do not waste money on this model.
DeWALT D 25601 K
The vertical motor tool from DeWalt completes this category. The model has a capacity of 1250 watts and makes from 1430 to 2840 beats per minute. The tool is mounted in the SDS-Max cartridge. The maximum diameter of the drill is allowed 45 mm, and the crowns 10 cm. The rear handle is a floating type, with dividers on the connection, which prevents the transmission of vibration. The rotary hammer works in two modes. Unit weight - 6.8 kg. Depth gauge helps in creating pattern holes. Included is a case for transportation.
+ Pros of DeWALT D 25601 K
- SDS-Max cartridge for fixing large equipment.
- When working in the lower position, the main handle can be held with both hands.
- Good anti-vibration system.
- Replacing brushes without disassembling the case.
- Confidently stands on the engine.
- Warranty from the manufacturer 3 years.
- Adjustable impact power.
- Cons DeWALT D 25601 K
- Short power cord 2.5 m.
- The device weighs 6.8 kg.
- There is no reverse - it will be necessary to pull out the drill on its own.
- Blocking protection works once.
- A long second handle interferes in tight spaces.
- Rubber pads from the handles come off.
Output. This is a powerful rotary hammer that does not “sink” in revolutions under load. The spindle rotation speed is 210-415 rpm, which is suitable for confident drilling with thick tooling with a diameter of 30-45 mm. 8 J impact power contributes to increased productivity.
The best professional-grade vertical rotary hammers
Repair technicians and builders need powerful equipment that can work quickly and withstand high loads. This category of professional rotary hammers contains the best models of vertical rotary hammers for daily use.
Bosch GBH 5-40 DCE
The German puncher from "Bosch" topped the rating. The engine has a power of 1150 watts and supports a stroke frequency of 1500-3050 per minute. The SDS-Max cartridge rotates at a speed of 170-340 rpm. The impact force is 8.8 J. The snap-in tool holder can be inserted 55 mm in diameter for straight work and 90 mm for cutting outlets and channels. Reverse in the model with a vertical engine is not provided. The device operates in two modes. The second handle has a wide support ring that makes it easier to hold a heavy tool.
+ Pros of Bosch GBH 5-40 DCE
- The metal part of the housing around the gearbox.
- Concrete easily passes with a drill of 30 mm.
- The protective sleeve really prevents twisting of the hands when the equipment is jammed.
- There is a vibration absorption mechanism.
- Locking start button for long drilling.
- Rugged case included.
- Smooth motor start for accurate mark entry.
- Cons Bosch GBH 5-40 DCE
- The long body of 60 cm is inconvenient for work in narrow bathrooms.
- Heats up quickly and needs breaks for cooling.
- There is no reverse.
- Not suitable for large-scale disassembly of walls.
- There is no drilling mode.
Output. This is a real "workhorse", which tolerates everyday use when installing air conditioners, windows and doors. If unexpectedly hard material is encountered, Turbo Power mode is provided, which gives increased productivity. The only condition for working with it is to allow it to cool periodically, which is normal during installation.
Makita HR 4501 C
This is one of the most successful models with a vertical engine from Makita. The power of the instrument is 1350 W and it gives out a shock force of 13 J. The frequency of the blows varies from 1250 to 2750 per minute. A 5 m cable allows you to use a hammer drill without an extension cord in a standard apartment with sockets in each corner. The unit is equipped with a speed control of 130-280 rpm and two modes of operation. The SDS-Max chuck clamps a snap of 45 mm (drills) and 12.5 cm (crowns). The hammer drill weighs 7.8 kg. The body in most places is covered with rubber, which reduces vibration and protects against shock.
+ Pros of Makita HR 4501 C
- Three year warranty from the manufacturer.
- Depth gauge.
- You can quickly free your hands by placing the hammer on a vertical motor.
- Slider switch for fixing the start during prolonged chiselling.
- Service bulbs suggest the need for brush replacement, dust blowing, lubrication.
- The rubberized case tolerates occasional bumps and falls.
- Adjusting the speed of work depending on the density of the material.
- Cons Makita HR 4501 C
- The drill lock protection does not always work.
- There is no starting rotation in the opposite direction.
- No vibration damping.
- The mass of the puncher is 7.8 kg.
- To switch modes, you have to make an effort.
Output. We recommend paying attention to this model for those who have to work with laying pipes through attics, basements and narrow bathrooms. The length of the punch body is only 45.8 cm, which is quite a bit with a powerful engine and impact force of 13 J. This is also the most reliable device from Makita, which works for some masters, judging by the reviews, for 7 years without breakdowns.
Makita HR 4511 C
The model has a power of 1350 W and a rotation frequency of 130-280 rpm. The device is capable of performing 1250-2750 strokes with a force of up to 13 J. The SDS-Max cartridge is designed for a continuous tool diameter of 45 mm and a hollow of 12.5 cm. A long cable of 5 m simplifies the connection and does not require carrying. The punch has an AVT system that reduces vibration. There is electronic stabilization.
+ Pros of Makita HR 4511 C
- Does not spoil the Chinese shanks in the cartridge (does not flatten).
- Roomy suitcase for transporting tools and accessories.
- When it enters the valve, the gear protection mechanism is activated.
- There is almost no vibration on the handle.
- Long network cable 5 m.
- It is completed with a case, grease and a towel for wiping the shank.
- The cable is covered with double insulation, not cracking in the cold.
- Compact dimensions of the case - 458x100x350 mm.
- Cons Makita HR 4511 C
- In the heat of summer, thermal protection often works.
- Weighs like a bucket of water - 8.5 kg.
- Missing reverse rotation.
- Only slotting and drilling functions.
- It’s hard to switch modes.
Output. The device stands out by adjusting the impact force. In addition to the number of perfect shocks, you can set the joule value from 2.7 to 13. This is useful when you frequently change the density of materials. When drilling a gypsum wall, you will not destroy the partition, but when passing reinforced concrete, reduce the time it takes to complete the task.
