NRB-25 - Hydraulic press Vevor - Free user manual and instructions

Product Type	Electric hydraulic rebar bender
Brand	Vevor
Model	NRB-25
Power	1500 W
Net Weight	23,65 kg
Gross Weight	22,94 kg
Maximum Bar Diameter	25 mm
Minimum Bar Diameter	10 mm
Cutting Speed	≤ 4 seconds
Power Supply	220-240 V ~ 50 Hz / 120 V ~ 60 Hz
Hydraulic Oil Type	ISO VG46 (viscosity 20, anti-foam, anti-wear)
Maximum Oil Temperature	70 °C (158 °F)
Maintenance	Daily cleaning, check oil level, replace carbon brushes every 2 months or 200 hours
Safety	Safety goggles, unplug before maintenance, do not use in wet environment
Spare Parts Available	Carbon brushes, bending blocks, oil cap, sealing washer
Warranty	Electronic warranty certificate at www.vevor.com/support
Manufacturer	Shanghai Muxin Muye Youxiangongsi, China
Importer (Australia)	SIHAO PTY LTD, 1 Rue Rokevaastwood, NSW 2122
Importer (United States)	Sanven Technology Ltd, Suite 250, 9166 Anaheim, 60329 Frankfurt am Main

Frequently Asked Questions - NRB-25 Vevor

What type of hydraulic oil to use?

Use hydraulic oil grade ISO VG46 (viscosity 20) with anti-foam and anti-wear properties, for example Shell Tellus 46, Mobil DTE-25, or Esso Univis SQ46.

How to check and top up the oil?

Unplug the device, remove the oil cap after cooling. The level should be at the bottom of the cap hole. If necessary, add hydraulic oil. Bleed the air by gently tilting the device.

When should the hydraulic oil be changed?

At least once a year, or sooner if the oil appears dirty. Drain completely, fill with new oil, then bleed the air. Dispose of used oil according to local regulations.

How to replace the carbon brushes?

Unplug the device. Unscrew the brush caps and remove the brushes. Replace them if they measure less than 6 mm in length. The brushes normally wear out after 200 hours of use.

Why does the bending power decrease?

Possible causes: low oil level, worn carbon brushes, or oil temperature too high (>70°C). Check the oil level, brushes, and let cool if necessary.

How to adjust the bending angle?

Use the adjustable stop (adjustable cap). On the first bend, make a mark on the positioning screw according to the desired angle. Subsequent bends at the same angle will be identical.

What are the essential safety precautions?

Always wear safety goggles. Keep visitors away. Do not operate the device with wet hands or in the rain. Unplug the device before any cleaning or maintenance.

How to maintain the bender daily?

Clean it daily with a brush to remove filings and dirt, especially around the piston. Wear gloves to protect yourself from metal splinters.

What to do in cold weather?

Warm up the device for 30 to 60 seconds by pulling the trigger to bring the oil up to temperature. Repeat 15 to 20 times to ensure correct viscosity.

Where to find technical support and warranty?

Visit the website www.vevor.com/support for technical support and the electronic warranty certificate.

USER MANUAL NRB-25 Vevor

Technical Support and E-Warranty Certificate www.vevor.com/support

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent estimate of savings you might benefit from buying certain tools with us compared to top brands and does not necessarily mean to cover all categories of tools offered. We kindly remind you to verify carefully when you are placing an order with us to ensure you are actually saving half in comparison with the top major brands.

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel free to contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction. Please read all manual instructions carefully before operating. VEVOR reserves the right to interpret the user manual. The appearance of the product shall be subject to the product you received. Please forgive us that we won't inform you of any technology or software updates on our product.

SAFETY INSTRUCTIONS

Usage

Use NRB-22, NRB-25, RB-16, RN-22, NRB-32 rebar bender on concrete reinforcing bars only.

Restrict use to designated materials

Don't use the machine to bend very hard rebar. The hard rebar may and will also damage the tool. Do not attempt to bend rebars harder, thicker or thinner than those specified.

Harder, thicker or thinner than those specified

Wear safety goggles, safety glasses with side shields or a face shield when using the bender.

Wear safety goggles, safety glasses with side shields, or a face shield when using the bender.

Provide safety barriers

Erect safety screens to protect co-workers from possible flying ends. If working in high places, place a safety screen under the rebar.

Guard against electric shock

To avoid possible electric shock, do not handle the cutter with wet hands, and do not use the cutter in the rain or in damp places. Be aware of all power lines, circuits, and other hazards that may be contacted, especially those that are below the surface or otherwise hidden from view.

Unplug the tool

Disconnect the cutter from the outlet when not in use and before cleaning, adjusting, or servicing. Do not disconnect the plug from the outlet by pulling the cord. Always check that the switch lock is OFF before plugging in.

Beware of the environment

Do not use the cutter in the presence of flammable materials (e.g., paint, thinner, petroleum products, adhesives).

Do not use the cutter in a possibly lighted area and keep the area clear of obstructions. The operator should at all times have an unobstructed view of the cutter, rebar, and surrounding area.

Wear proper apparel

Do not wear loose clothes, dangling objects, or jewelry. Restrain long hair. The use of a safety helmet and rubber-soled boots is recommended. If safety gloves are worn, be especially careful that the gloves do not get caught in moving parts.

Keep visitors away

Keep all visitors at a safe distance from the work area for their own protection and to prevent distraction of the operator.

Maintain the cutter with care

Inspect the cutter before each application. Faulty or loose cutter blocks can result in personal injury. Keep the handle dry, clean, and free from oil and grease. Keep the housing and piston free of dirt and iron filings. Check if screws or bolts are loose or missing. Follow the instructions for maintenance. Inspect the switch, cord, plug, and any extension cable at regular intervals.

Store carefully

When not in use, store the bender and accessories in a dry place where they cannot be accessed by unauthorized persons.

PARAMETER LIST

Model	NRB-22	NRB-25	RB-16	RN-22	NRB-32
Wattage(W)	1500	1500	1000	1500	2000
G.W.(kg)	21.38	22.94	11.73	20	33.6
N.W.(kg)	22.2	23.65	12.23	20.8	34.6
Cutting speed	≤4s	≤4s	≤4s	≤4s	≤5s
Max Rebar	22mm	25mm	16mm	20mm	32mm
Min Rebar	12mm	10mm	6mm	6mm	20mm

Note: There are two versions of the voltage of the above product, respectively, AC220-240V 50Hz and 120V 60Hz. Please see the name information of the product.

PARTS AND SPECIFICATIONS

NO.	PARTS NAME	NO.	PARTS NAME
1	Head	9	Carbon brush holder
2	Bend blocks	10	Carbon brush
3	Adjustable stopper	11	Switch
4	Side handle (detachable)	12	Plastick house
5	Cylinder	13	Motor
6	Oil case	14	Switch
7	Pump case	15	bending piston
8	Oil-plug

INSTRUCTIONS

Caution: Indicates a hazard that could result in minor personal injury or product damage.

Care: Indicates a hazard that will result in product damage.

Pre-use checks

1. Check oil level.
2. Check condition of bender blocks and tightness of bender block bolt.
3. Check that the power source is appropriate for the bender.

CARE: If voltage is too high, the motor will burn out. If the voltage is low, insufficient power will be generated. Never use DC power.

1. Check that the power supply is properly earthed.

CAUTION: Failure to earth the power supply may result in electric shock to the operator.

1. Check that cord is undamaged and that plug is not loose.

If an extension cable is to be used, make sure that it is undamaged and that it is the proper thickness for the length. See table below.

Cable length	110/115V	230V
	Cable size (AWG)	Nomibal diameter
Up to 10m (33 ft)	16	1.0mm2
Up to 15m (50 ft)	14	1.25mm2
Up to 30m (100 ft)	10	1.5mm2

1. Before plugging in, make sure that the switch lock is OFF.

Warm-up

In cold weather, warm up unit for 30~60 seconds so that the hydraulic reaches the proper viscosity. Pull trigger-switch to extend piston and release when it has reached its full stroke. Repeat 15~20 times.

Stopper adjustment

The adjustable stopper function to maintain the rebar in tln cold weat warm up unit for 30-60 seconds so that the hydraulic oil reaches the viscosity. Pull trigger -switch to extend piston and release when it has reached its full stroke, Repeat 15-20 times.

When bending for the first time, you can make a mark at the position screw according to the bending angle, so that you can bend the same angle next time.

POINTS OF ATTENTION

1. Do not cover air vents.

CARE: If events are covered, motor will overheat and may burn out.

1. If hydraulic oil exceeds 70. (158.F) in temperature, power will drop. Allow unit to cool before resuming operation. (Be particularly careful in summer, when the aluminium pump case heats up quicker.)
2. If a drop in power is observed and motor is unusually hot, check carbon-Brushes.
3. Pull the #14 part valve to make the bending piston return back total after each bending.

MAINTENANCE

CLEANING

Clean the bender every day, preferably immediately after use.

CAUTION: Wear gloves to protect hands from metal splinters. Do not use an air gun: blasting with air can cause metal filings and/or dust to get into eyes and respiratory system.

1. Disconnect the unit.
2. Wipe or brush away all dirt and metal filings. Pay particular attention to the lower half of the piston, where dirt is more easily accumulated.

Oil-level check

As the bender is hydraulically operated, the oil level must be checked at frequent intervals, preferably every day. Failure to maintain the oil at the proper level results in a drop in pressure and loss of bending power.

Caution: Hydraulic oil is highly flammable. Keep away from sparks or naked flame. Do not smoke.

Caution: Hydraulic oil may cause inflammation of the eyes and skin. If ingested, it will cause diarrhoea and vomiting.

In case of eye contact, rinse in clean water for at least 15 minutes and consult a physician. In case of skin contact, wash thoroughly with soap and water.

In case of ingestion, consult a physician immediately. Do not deliberately induce vomiting.

1. Oil should be warm but not hot. Warm up unit if cold.
2. Adjust stopper and make three or four cuts, noting exactly at what the rebar is actually breaking.
3. Pinch a short piece of rebar, stopping just before it breaks off. Unplug from power source.
4. With partially severed rebar in place, turn unit over so that oil-plug uppermost. (If unit is hot, allow to cool down.)
5. Remove oil-plug and seal-washer (packing)

Caution: Never remove oil-plug when unit is hot or oil will spurt out.

1. Check that oil is level with bottom of plug hole. (i.e. That pump can to the brim). If oil level is too low, top up with 20-weight hydraulic oil with anti-foam and anti-abrasion properties. (ISO viscosity grade VG46. E.g. Shell oil Tellus 46, Mobil oil DTE-25 OR Esso Uni Power SQ46.)
2. After topping up, extract air from system. Gently tilt cutter lengthwise. Return it to a level position. Top up again and tilt in the opposite direction. Repeat this process until all air has been extracted.

CAUTION: The bender cannot function properly if the oil contains air bubbles.

1. Replace the seal washer (packing) and plug. Connect the cutter to the power source and completely serve the rebar.

Oil change

The hydraulic oil should be changed at least once a year, sooner if it appears dirty.

1. Unplug the unit from the power source. Remove the oil plug and packing. Turn

the bender over and drain the oil into a suitable receptacle. When the oil ceases to drain out, tilt the unit to the rear so that oil trapped in the piston housing can drain out. When the housing is empty, tilt the unit in the opposite direction to empty residue in the pump case.

1. With the drain hole uppermost, slowly fill the unit with fresh oil. Replace the plug and lightly tighten. Connect the unit to the power source and advance the piston two or three times. Unplug the unit and remove the oil plug. Top up the oil level and re-plug.
2. Finally, follow the procedure for oil level check. (Steps 2~8.)

Note: Dispose of hydraulic oil in accordance with local regulations. Do not pour it into the sea, river, lake, or drains.

Bolt tightness

Once a week or after every 500 cuts, check the tightness of all bolts, especially those securing the housing to the cylinder. Loose bolts will result in a loss of power.

Carbon brushes

Inspect the two carbon brushes at least once every two months. (Normal brush life is 200 hours.)

CAUTION: Worn brushes will result in power loss, cause the motor to run hot, and irreparably damage the armature's commutator.

1. Disconnect unit
2. Unscrew both brush caps and pull out carbon brushes.
3. Replace brushes if less than 6 cm in length.

Manufacturer: Shanghaimuxinmuyeyouxiangongsi

Address: Shuangchenglu 803nong11hao1602A-1609shi, baoshanqu, shanghai 200000 CN.

Imported to AUS: SIHAO PTY LTD. 1 ROKEVA STREETEASTWOOD NSW 2122 Australia

Imported to USA: Sanven Technology Ltd. Suite 250, 9166 Anaheim Place, Rancho Cucamonga, CA 91730

UK

REP

YH CONSULTING LIMITED. C/O YH Consultin Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4A>

EC

REP

Technical Support and E-Warranty Certificate

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

NEED HELP? CONTACT US!

Place, Rancho Cucamonga, CA 91730

REPRÉSENTANT DU ROYAUME-UNI

REPRÉSENTANT CE

YH CONSULTING LIMITED. C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

E-CrossStu GmbH

Mainzer Landstr.69,

YH CONSULTING LIMITED. C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

NEED HELP? CONTACT US!

Shell oil Tellus 46, Mobil oil DTE-25 or Esso Uni Power SQ46.

Imported into AUS: SIHAO PTY LTD. 1 ROKEVA STREET EASTWOOD NSW 2122 Australia

Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

E-CrossStu GmbH

Mainzer Landstr.69,

electronics www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

YH CONSULTING LIMITADO. C/O YH Consulting

Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

E-CrossStu GmbH

Mainzer Landstr.69,

NEED HELP? CONTACT US!

RESPONSIBILITY. C/O YH Consulting Limited

Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW1

E-CrossStu GmbH

Mainzer Landstr.69,

60329 Frankfurt am Main.

VEVOR®

TOUGH TOOLS, HALF PRICE

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

Technical support and e-warranty certificate www.vevor.com/support

ELECTRIC REBAR BENDER

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

NEED HELP? CONTACT US!

YH CONSULTING LIMITED. C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

EG REP

Warranty certificate www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

MODEL: NRB-22/NRB-25/RB-16/RN-22/NRB-32

NEED HELP? CONTACT US!

YH CONSULTING LIMITED. C/O YH Consulting Limited Office 147, Centurion House, London Road, Staines-upon-Thames, Surrey, TW18 4AX

www.vevor.com/support