








Merach Twister Arm Trainer With Counting 22-440lb Adjustable Hydraulic Cylinder Power Forearm Strengthener Arm Twister Workout Equipment Home Chest Expander Shoulder Muscle Training Fitness Equipment
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Product Description
SPECIFICATIONS
Arm Exerciser Grade: 22-440lb
Brand Name: MERACH
Display: LCD Rep Counter / Digital Counter Display
Foldable: Yes / Snap-Lock Folding Design
Function: ARMS
Handle: Ergonomic PU Handle / Non-Slip Grip
High-concerned chemical: none
Material: High-Density Carbon Steel / Double-Layer Steel
Model Number: 2520
Origin: Mainland China
Product Type: Hydraulic Arm Exerciser / Chest Exercise Machine / Arm Strength Trainer
Resistance Levels: 20 Adjustable Levels
Resistance Range: max 440 lbs
Resistance Type: Hydraulic Resistance / Adjustable Hydraulic
Structure: Triangular Reinforced Structure
Target Area: Chest / Arms / Shoulders / Forearms / Upper Body
Training Site: Waist,ARMS,Waist & Abdomen Exercise,Hand,Wrist,Hip,Chest,Core
Type: Hydraulic arm
Type of sports: Strength Training

Adjustable Resistance 22–440 lbs + LCD Rep Counter – One Machine for Every Level
This hydraulic arm exerciser features 20 adjustable resistance levels (22–440 lbs) with a simple twist-knob design—no tools needed. Whether you're a beginner building foundational strength or an advanced athlete pushing limits, dial in the exact resistance you need. The built-in LCD counter tracks every rep in real time, so you can set goals, monitor progress, and stay motivated without guesswork. Perfect replacement for multiple dumbbells or resistance bands.
Upgraded Safety Design – Protect Your Hands & Equipment
Unlike traditional arm trainers, the Merach hydraulic chest exerciser adds a reinforced protective housing around the hydraulic cylinder and strength gauge. This cushions accidental impacts, prevents oil leakage, and significantly reduces the risk of pinch injuries. The safe micro-rebound mechanism ensures smooth, controlled resistance—no sudden snap-back. Train with confidence at home, in the gym, or anywhere.
Industrial-Grade Durability – Built to Last Years of Heavy Use
Constructed with double-layer high-density carbon steel that resists deformation and breakage even under maximum load. The core hydraulic cylinder is fully sealed for consistent, stable resistance throughout every rep—no fading, no jerking. Combined with a reinforced triangular structure and heavy-duty rivets, this chest workout equipment delivers rock-solid stability during intense training sessions.
Ergonomic & Portable – Train Anywhere, Store Anywhere
Designed with wear-resistant, non-slip PU ergonomic handles for a comfortable grip during high-rep sets—no blisters, no slipping. The bottom snap-lock mechanism allows instant folding for compact storage under a bed, in a closet, or in a gym bag. Lightweight enough to carry to the office, park, or while traveling. Your full upper-body workout is always within arm's reach.
Full Upper-Body Training for Men & Women – Home Gym Essential
Targets chest, arms, shoulders, forearms, and back in one compact tool. Ideal for men building muscle mass, women toning arms, seniors maintaining joint mobility, and athletes recovering from injury. Replaces bulky gym machines with a space-saving solution perfect for apartments, dorm rooms, home gyms, or office breaks. Backed by Merach's comprehensive after-sales support—contact us anytime for assistance.




Note
1. Ships from Local warehouse. Fast shipping. Free shipping.
2. Please allow 1-2 cm error in size due to different manual measurement methods.
3. PO box addresses cannot be used for shipping; please do not leave a PO box address.
4.Tracking information will usually be updated in 24- 72 hours.
RELIABLE AFTER-SALES SUPPORT
Your purchase comes with a 1-year warranty covering all covered faults. We will provide replacement parts free of charge to ensure long-term use without the hassle of returning bulky equipment. Within one year, for products that are irreparable or completely unusable, we will provide a free replacement. We also offer a standard 30-day return policy.
Friendly reminder: Due to different global time zones, please allow us a maximum of 24 hours to respond to your messages. If you need assistance, please contact us directly before initiating a dispute—we are always ready to help!

Shipping
Free Local and International shipping. See details
Delivery
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Returns
30-day returns. 100% money-backguaranteed, no questions asked. If the mistake is from Us. See details
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping & returns

Merach Twister Arm Trainer With Counting 22-440lb Adjustable Hydraulic Cylinder Power Forearm Strengthener Arm Twister Workout Equipment Home Chest Expander Shoulder Muscle Training Fitness Equipment
Comfort for Every Routine
Our carefully selected products combine practical design with relaxing features to support everyday comfort at home, in the office or while travelling.

Bring Comfort Into Your Everyday Life
From compact foot massage pads to advanced leg massagers and full body massage chairs, our collection offers practical ways to relax at home. Choose the product that best matches your routine, space and preferred massage experience.
WELLNESS MADE SIMPLE
EVERYDAY COMFORT

Your Personal Moment of Relaxation
Make time for yourself with massage products designed to fit naturally into your day. Enjoy soothing warmth, gentle stimulation or deeper massage whenever you need a quiet moment to unwind.
FAQs
Please read our FAQs page to find out more.
Which massage product should I choose?
Choose according to the area you want to massage and the experience you prefer. Foot massagers target the feet, leg massagers focus on the calves and ankles, while massage chairs provide more complete body coverage.
Do all products include heat?
No. Heat is available only on selected products. Please check the individual product description before ordering.
Are the intensity levels adjustable?
Many products include adjustable intensity or massage modes, but available settings vary between models.
Do the products require electricity?
Some products require a power connection or charging, while manual pads and selected accessories do not. Check the product specifications for exact details.
Are the products easy to use?
Most products are designed with simple controls and straightforward operation. Instructions are supplied where available.
Are these medical products?
No. Our products are intended for general relaxation and wellness and should not replace medical advice or treatment.





